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Finding the Fourth Proportional to 66,159.90, 99,367.52 and 56,693.70

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Solution

The fourth proportional to 66,159.90, 99,367.52 and 56,693.70 is: 85,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,159.90 : 99,367.52 = 56,693.70 : x
  2. Step 2: Convert to fraction form
    66,159.90/99,367.52 = 56,693.70/x
  3. Step 3: Cross multiply
    66,159.90x = 99,367.52 × 56,693.70
  4. Step 4: Simplify right side
    66,159.90x = 5,633,512,368.62
  5. Step 5: Solve for x
    x = 5,633,512,368.62/66,159.90
  6. Step 6: Final answer
    x = 85,149.95

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1.5x scale

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.