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Finding the Fourth Proportional to 88,007.80, 131,925.30 and 43,641.40

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Solution

The fourth proportional to 88,007.80, 131,925.30 and 43,641.40 is: 65,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,007.80 : 131,925.30 = 43,641.40 : x
  2. Step 2: Convert to fraction form
    88,007.80/131,925.30 = 43,641.40/x
  3. Step 3: Cross multiply
    88,007.80x = 131,925.30 × 43,641.40
  4. Step 4: Simplify right side
    88,007.80x = 5,757,404,787.42
  5. Step 5: Solve for x
    x = 5,757,404,787.42/88,007.80
  6. Step 6: Final answer
    x = 65,419.26

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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.