Home / 90,194.31-135,290.05-31,030.49

Finding the Fourth Proportional to 90,194.31, 135,290.05 and 31,030.49

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Solution

The fourth proportional to 90,194.31, 135,290.05 and 31,030.49 is: 46,545.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,194.31 : 135,290.05 = 31,030.49 : x
  2. Step 2: Convert to fraction form
    90,194.31/135,290.05 = 31,030.49/x
  3. Step 3: Cross multiply
    90,194.31x = 135,290.05 × 31,030.49
  4. Step 4: Simplify right side
    90,194.31x = 4,198,116,804.27
  5. Step 5: Solve for x
    x = 4,198,116,804.27/90,194.31
  6. Step 6: Final answer
    x = 46,545.25

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.