Home / 87,901.92-121,306.32-48,157.92

Finding the Fourth Proportional to 87,901.92, 121,306.32 and 48,157.92

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Solution

The fourth proportional to 87,901.92, 121,306.32 and 48,157.92 is: 66,458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,901.92 : 121,306.32 = 48,157.92 : x
  2. Step 2: Convert to fraction form
    87,901.92/121,306.32 = 48,157.92/x
  3. Step 3: Cross multiply
    87,901.92x = 121,306.32 × 48,157.92
  4. Step 4: Simplify right side
    87,901.92x = 5,841,860,054.05
  5. Step 5: Solve for x
    x = 5,841,860,054.05/87,901.92
  6. Step 6: Final answer
    x = 66,458.84

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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.