Home / 78,346.28-108,114.92-42,535.53

Finding the Fourth Proportional to 78,346.28, 108,114.92 and 42,535.53

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Solution

The fourth proportional to 78,346.28, 108,114.92 and 42,535.53 is: 58,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,346.28 : 108,114.92 = 42,535.53 : x
  2. Step 2: Convert to fraction form
    78,346.28/108,114.92 = 42,535.53/x
  3. Step 3: Cross multiply
    78,346.28x = 108,114.92 × 42,535.53
  4. Step 4: Simplify right side
    78,346.28x = 4,598,725,369.94
  5. Step 5: Solve for x
    x = 4,598,725,369.94/78,346.28
  6. Step 6: Final answer
    x = 58,697.43

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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.