Home / 90,445.77-135,713.61-40,561.11

Finding the Fourth Proportional to 90,445.77, 135,713.61 and 40,561.11

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Solution

The fourth proportional to 90,445.77, 135,713.61 and 40,561.11 is: 60,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,445.77 : 135,713.61 = 40,561.11 : x
  2. Step 2: Convert to fraction form
    90,445.77/135,713.61 = 40,561.11/x
  3. Step 3: Cross multiply
    90,445.77x = 135,713.61 × 40,561.11
  4. Step 4: Simplify right side
    90,445.77x = 5,504,694,663.71
  5. Step 5: Solve for x
    x = 5,504,694,663.71/90,445.77
  6. Step 6: Final answer
    x = 60,861.83

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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.