Home / 87,666.48-120,979.76-47,380.24

Finding the Fourth Proportional to 87,666.48, 120,979.76 and 47,380.24

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Solution

The fourth proportional to 87,666.48, 120,979.76 and 47,380.24 is: 65,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,666.48 : 120,979.76 = 47,380.24 : x
  2. Step 2: Convert to fraction form
    87,666.48/120,979.76 = 47,380.24/x
  3. Step 3: Cross multiply
    87,666.48x = 120,979.76 × 47,380.24
  4. Step 4: Simplify right side
    87,666.48x = 5,732,050,059.69
  5. Step 5: Solve for x
    x = 5,732,050,059.69/87,666.48
  6. Step 6: Final answer
    x = 65,384.74

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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.