Home / 78,819.15-108,773.04-43,011.12

Finding the Fourth Proportional to 78,819.15, 108,773.04 and 43,011.12

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Solution

The fourth proportional to 78,819.15, 108,773.04 and 43,011.12 is: 59,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,819.15 : 108,773.04 = 43,011.12 : x
  2. Step 2: Convert to fraction form
    78,819.15/108,773.04 = 43,011.12/x
  3. Step 3: Cross multiply
    78,819.15x = 108,773.04 × 43,011.12
  4. Step 4: Simplify right side
    78,819.15x = 4,678,450,276.20
  5. Step 5: Solve for x
    x = 4,678,450,276.20/78,819.15
  6. Step 6: Final answer
    x = 59,356.77

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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.