Home / 87,997.55-121,437.16-47,710.96

Finding the Fourth Proportional to 87,997.55, 121,437.16 and 47,710.96

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Solution

The fourth proportional to 87,997.55, 121,437.16 and 47,710.96 is: 65,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,997.55 : 121,437.16 = 47,710.96 : x
  2. Step 2: Convert to fraction form
    87,997.55/121,437.16 = 47,710.96/x
  3. Step 3: Cross multiply
    87,997.55x = 121,437.16 × 47,710.96
  4. Step 4: Simplify right side
    87,997.55x = 5,793,883,060.40
  5. Step 5: Solve for x
    x = 5,793,883,060.40/87,997.55
  6. Step 6: Final answer
    x = 65,841.42

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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.