Home / 87,802.42-121,167.65-47,516.17

Finding the Fourth Proportional to 87,802.42, 121,167.65 and 47,516.17

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Solution

The fourth proportional to 87,802.42, 121,167.65 and 47,516.17 is: 65,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,802.42 : 121,167.65 = 47,516.17 : x
  2. Step 2: Convert to fraction form
    87,802.42/121,167.65 = 47,516.17/x
  3. Step 3: Cross multiply
    87,802.42x = 121,167.65 × 47,516.17
  4. Step 4: Simplify right side
    87,802.42x = 5,757,422,418.32
  5. Step 5: Solve for x
    x = 5,757,422,418.32/87,802.42
  6. Step 6: Final answer
    x = 65,572.48

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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.