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Finding the Fourth Proportional to 99,294.90, 137,026.71 and 53,972.88

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Solution

The fourth proportional to 99,294.90, 137,026.71 and 53,972.88 is: 74,482.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,294.90 : 137,026.71 = 53,972.88 : x
  2. Step 2: Convert to fraction form
    99,294.90/137,026.71 = 53,972.88/x
  3. Step 3: Cross multiply
    99,294.90x = 137,026.71 × 53,972.88
  4. Step 4: Simplify right side
    99,294.90x = 7,395,726,175.62
  5. Step 5: Solve for x
    x = 7,395,726,175.62/99,294.90
  6. Step 6: Final answer
    x = 74,482.44

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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.