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Finding the Fourth Proportional to 59,680, 89,500.88 and 19,690.04

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Solution

The fourth proportional to 59,680, 89,500.88 and 19,690.04 is: 29,528.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,680 : 89,500.88 = 19,690.04 : x
  2. Step 2: Convert to fraction form
    59,680/89,500.88 = 19,690.04/x
  3. Step 3: Cross multiply
    59,680x = 89,500.88 × 19,690.04
  4. Step 4: Simplify right side
    59,680x = 1,762,275,907.24
  5. Step 5: Solve for x
    x = 1,762,275,907.24/59,680
  6. Step 6: Final answer
    x = 29,528.75

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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.