Home / 78,560.92-108,416.37-42,753.25

Finding the Fourth Proportional to 78,560.92, 108,416.37 and 42,753.25

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Solution

The fourth proportional to 78,560.92, 108,416.37 and 42,753.25 is: 59,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,560.92 : 108,416.37 = 42,753.25 : x
  2. Step 2: Convert to fraction form
    78,560.92/108,416.37 = 42,753.25/x
  3. Step 3: Cross multiply
    78,560.92x = 108,416.37 × 42,753.25
  4. Step 4: Simplify right side
    78,560.92x = 4,635,152,170.70
  5. Step 5: Solve for x
    x = 4,635,152,170.70/78,560.92
  6. Step 6: Final answer
    x = 59,000.74

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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.