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Finding the Fourth Proportional to 88,034, 121,487.12 and 50,308.16

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Solution

The fourth proportional to 88,034, 121,487.12 and 50,308.16 is: 69,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,034 : 121,487.12 = 50,308.16 : x
  2. Step 2: Convert to fraction form
    88,034/121,487.12 = 50,308.16/x
  3. Step 3: Cross multiply
    88,034x = 121,487.12 × 50,308.16
  4. Step 4: Simplify right side
    88,034x = 6,111,793,470.90
  5. Step 5: Solve for x
    x = 6,111,793,470.90/88,034
  6. Step 6: Final answer
    x = 69,425.38

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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.