Home / 72,365.91-99,863.78-40,534.71

Finding the Fourth Proportional to 72,365.91, 99,863.78 and 40,534.71

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Solution

The fourth proportional to 72,365.91, 99,863.78 and 40,534.71 is: 55,937.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,365.91 : 99,863.78 = 40,534.71 : x
  2. Step 2: Convert to fraction form
    72,365.91/99,863.78 = 40,534.71/x
  3. Step 3: Cross multiply
    72,365.91x = 99,863.78 × 40,534.71
  4. Step 4: Simplify right side
    72,365.91x = 4,047,948,862.48
  5. Step 5: Solve for x
    x = 4,047,948,862.48/72,365.91
  6. Step 6: Final answer
    x = 55,937.24

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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.