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Finding the Fourth Proportional to 71,383.52, 106,878.18 and 53,800.04

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Solution

The fourth proportional to 71,383.52, 106,878.18 and 53,800.04 is: 80,551.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,383.52 : 106,878.18 = 53,800.04 : x
  2. Step 2: Convert to fraction form
    71,383.52/106,878.18 = 53,800.04/x
  3. Step 3: Cross multiply
    71,383.52x = 106,878.18 × 53,800.04
  4. Step 4: Simplify right side
    71,383.52x = 5,750,050,359.13
  5. Step 5: Solve for x
    x = 5,750,050,359.13/71,383.52
  6. Step 6: Final answer
    x = 80,551.51

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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.