Home / 90,237.06-135,353.99-31,071.42

Finding the Fourth Proportional to 90,237.06, 135,353.99 and 31,071.42

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Solution

The fourth proportional to 90,237.06, 135,353.99 and 31,071.42 is: 46,606.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,237.06 : 135,353.99 = 31,071.42 : x
  2. Step 2: Convert to fraction form
    90,237.06/135,353.99 = 31,071.42/x
  3. Step 3: Cross multiply
    90,237.06x = 135,353.99 × 31,071.42
  4. Step 4: Simplify right side
    90,237.06x = 4,205,640,516.61
  5. Step 5: Solve for x
    x = 4,205,640,516.61/90,237.06
  6. Step 6: Final answer
    x = 46,606.58

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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.