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Finding the Fourth Proportional to 96,689.80, 133,432.41 and 54,248.64

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Solution

The fourth proportional to 96,689.80, 133,432.41 and 54,248.64 is: 74,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,689.80 : 133,432.41 = 54,248.64 : x
  2. Step 2: Convert to fraction form
    96,689.80/133,432.41 = 54,248.64/x
  3. Step 3: Cross multiply
    96,689.80x = 133,432.41 × 54,248.64
  4. Step 4: Simplify right side
    96,689.80x = 7,238,526,774.42
  5. Step 5: Solve for x
    x = 7,238,526,774.42/96,689.80
  6. Step 6: Final answer
    x = 74,863.40

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1.5x scale

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.