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Finding the Fourth Proportional to 80,909.60, 111,656.70 and 45,095.76

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Solution

The fourth proportional to 80,909.60, 111,656.70 and 45,095.76 is: 62,232.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,909.60 : 111,656.70 = 45,095.76 : x
  2. Step 2: Convert to fraction form
    80,909.60/111,656.70 = 45,095.76/x
  3. Step 3: Cross multiply
    80,909.60x = 111,656.70 × 45,095.76
  4. Step 4: Simplify right side
    80,909.60x = 5,035,243,745.59
  5. Step 5: Solve for x
    x = 5,035,243,745.59/80,909.60
  6. Step 6: Final answer
    x = 62,232.96

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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.