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Finding the Fourth Proportional to 79,468.80, 109,640.20 and 45,008.84

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Solution

The fourth proportional to 79,468.80, 109,640.20 and 45,008.84 is: 62,097.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,468.80 : 109,640.20 = 45,008.84 : x
  2. Step 2: Convert to fraction form
    79,468.80/109,640.20 = 45,008.84/x
  3. Step 3: Cross multiply
    79,468.80x = 109,640.20 × 45,008.84
  4. Step 4: Simplify right side
    79,468.80x = 4,934,777,446.12
  5. Step 5: Solve for x
    x = 4,934,777,446.12/79,468.80
  6. Step 6: Final answer
    x = 62,097.04

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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.