Home / 72,507.55-100,061.10-40,677.13

Finding the Fourth Proportional to 72,507.55, 100,061.10 and 40,677.13

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Solution

The fourth proportional to 72,507.55, 100,061.10 and 40,677.13 is: 56,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,507.55 : 100,061.10 = 40,677.13 : x
  2. Step 2: Convert to fraction form
    72,507.55/100,061.10 = 40,677.13/x
  3. Step 3: Cross multiply
    72,507.55x = 100,061.10 × 40,677.13
  4. Step 4: Simplify right side
    72,507.55x = 4,070,198,372.64
  5. Step 5: Solve for x
    x = 4,070,198,372.64/72,507.55
  6. Step 6: Final answer
    x = 56,134.82

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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.