Home / 87,857.03-121,242.17-47,569.95

Finding the Fourth Proportional to 87,857.03, 121,242.17 and 47,569.95

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Solution

The fourth proportional to 87,857.03, 121,242.17 and 47,569.95 is: 65,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,857.03 : 121,242.17 = 47,569.95 : x
  2. Step 2: Convert to fraction form
    87,857.03/121,242.17 = 47,569.95/x
  3. Step 3: Cross multiply
    87,857.03x = 121,242.17 × 47,569.95
  4. Step 4: Simplify right side
    87,857.03x = 5,767,484,083.72
  5. Step 5: Solve for x
    x = 5,767,484,083.72/87,857.03
  6. Step 6: Final answer
    x = 65,646.24

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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.