Home / 72,102.18-99,489.15-40,265.94

Finding the Fourth Proportional to 72,102.18, 99,489.15 and 40,265.94

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Solution

The fourth proportional to 72,102.18, 99,489.15 and 40,265.94 is: 55,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,102.18 : 99,489.15 = 40,265.94 : x
  2. Step 2: Convert to fraction form
    72,102.18/99,489.15 = 40,265.94/x
  3. Step 3: Cross multiply
    72,102.18x = 99,489.15 × 40,265.94
  4. Step 4: Simplify right side
    72,102.18x = 4,006,024,144.55
  5. Step 5: Solve for x
    x = 4,006,024,144.55/72,102.18
  6. Step 6: Final answer
    x = 55,560.37

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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.