Home / 87,998.55-121,438.54-47,711.96

Finding the Fourth Proportional to 87,998.55, 121,438.54 and 47,711.96

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Solution

The fourth proportional to 87,998.55, 121,438.54 and 47,711.96 is: 65,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.55 : 121,438.54 = 47,711.96 : x
  2. Step 2: Convert to fraction form
    87,998.55/121,438.54 = 47,711.96/x
  3. Step 3: Cross multiply
    87,998.55x = 121,438.54 × 47,711.96
  4. Step 4: Simplify right side
    87,998.55x = 5,794,070,762.94
  5. Step 5: Solve for x
    x = 5,794,070,762.94/87,998.55
  6. Step 6: Final answer
    x = 65,842.80

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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.