Home / 90,608.76-124,999.04-58,331.78

Finding the Fourth Proportional to 90,608.76, 124,999.04 and 58,331.78

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Solution

The fourth proportional to 90,608.76, 124,999.04 and 58,331.78 is: 80,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,608.76 : 124,999.04 = 58,331.78 : x
  2. Step 2: Convert to fraction form
    90,608.76/124,999.04 = 58,331.78/x
  3. Step 3: Cross multiply
    90,608.76x = 124,999.04 × 58,331.78
  4. Step 4: Simplify right side
    90,608.76x = 7,291,416,501.49
  5. Step 5: Solve for x
    x = 7,291,416,501.49/90,608.76
  6. Step 6: Final answer
    x = 80,471.43

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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.