Home / 78,502.47-117,755.04-22,344.02

Finding the Fourth Proportional to 78,502.47, 117,755.04 and 22,344.02

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Solution

The fourth proportional to 78,502.47, 117,755.04 and 22,344.02 is: 33,516.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502.47 : 117,755.04 = 22,344.02 : x
  2. Step 2: Convert to fraction form
    78,502.47/117,755.04 = 22,344.02/x
  3. Step 3: Cross multiply
    78,502.47x = 117,755.04 × 22,344.02
  4. Step 4: Simplify right side
    78,502.47x = 2,631,120,380.09
  5. Step 5: Solve for x
    x = 2,631,120,380.09/78,502.47
  6. Step 6: Final answer
    x = 33,516.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.