Home / 78,534.90-108,372.60-46,697.85

Finding the Fourth Proportional to 78,534.90, 108,372.60 and 46,697.85

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Solution

The fourth proportional to 78,534.90, 108,372.60 and 46,697.85 is: 64,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,534.90 : 108,372.60 = 46,697.85 : x
  2. Step 2: Convert to fraction form
    78,534.90/108,372.60 = 46,697.85/x
  3. Step 3: Cross multiply
    78,534.90x = 108,372.60 × 46,697.85
  4. Step 4: Simplify right side
    78,534.90x = 5,060,767,418.91
  5. Step 5: Solve for x
    x = 5,060,767,418.91/78,534.90
  6. Step 6: Final answer
    x = 64,439.73

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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.