Home / 90,349.22-135,542.02-31,187.18

Finding the Fourth Proportional to 90,349.22, 135,542.02 and 31,187.18

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Solution

The fourth proportional to 90,349.22, 135,542.02 and 31,187.18 is: 46,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,349.22 : 135,542.02 = 31,187.18 : x
  2. Step 2: Convert to fraction form
    90,349.22/135,542.02 = 31,187.18/x
  3. Step 3: Cross multiply
    90,349.22x = 135,542.02 × 31,187.18
  4. Step 4: Simplify right side
    90,349.22x = 4,227,173,375.30
  5. Step 5: Solve for x
    x = 4,227,173,375.30/90,349.22
  6. Step 6: Final answer
    x = 46,787.05

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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.