Home / 87,288.62-130,990.34-47,873.41

Finding the Fourth Proportional to 87,288.62, 130,990.34 and 47,873.41

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Solution

The fourth proportional to 87,288.62, 130,990.34 and 47,873.41 is: 71,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,288.62 : 130,990.34 = 47,873.41 : x
  2. Step 2: Convert to fraction form
    87,288.62/130,990.34 = 47,873.41/x
  3. Step 3: Cross multiply
    87,288.62x = 130,990.34 × 47,873.41
  4. Step 4: Simplify right side
    87,288.62x = 6,270,953,597.91
  5. Step 5: Solve for x
    x = 6,270,953,597.91/87,288.62
  6. Step 6: Final answer
    x = 71,841.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.