Home / 90,921.38-125,468.96-50,635.13

Finding the Fourth Proportional to 90,921.38, 125,468.96 and 50,635.13

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Solution

The fourth proportional to 90,921.38, 125,468.96 and 50,635.13 is: 69,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,921.38 : 125,468.96 = 50,635.13 : x
  2. Step 2: Convert to fraction form
    90,921.38/125,468.96 = 50,635.13/x
  3. Step 3: Cross multiply
    90,921.38x = 125,468.96 × 50,635.13
  4. Step 4: Simplify right side
    90,921.38x = 6,353,136,220.04
  5. Step 5: Solve for x
    x = 6,353,136,220.04/90,921.38
  6. Step 6: Final answer
    x = 69,875.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.