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Finding the Fourth Proportional to 80,374.62, 110,683.08 and 75,240.12

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Solution

The fourth proportional to 80,374.62, 110,683.08 and 75,240.12 is: 103,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,374.62 : 110,683.08 = 75,240.12 : x
  2. Step 2: Convert to fraction form
    80,374.62/110,683.08 = 75,240.12/x
  3. Step 3: Cross multiply
    80,374.62x = 110,683.08 × 75,240.12
  4. Step 4: Simplify right side
    80,374.62x = 8,327,808,221.17
  5. Step 5: Solve for x
    x = 8,327,808,221.17/80,374.62
  6. Step 6: Final answer
    x = 103,612.41

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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.