Home / 87,282.63-130,981.35-47,867.42

Finding the Fourth Proportional to 87,282.63, 130,981.35 and 47,867.42

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Solution

The fourth proportional to 87,282.63, 130,981.35 and 47,867.42 is: 71,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,282.63 : 130,981.35 = 47,867.42 : x
  2. Step 2: Convert to fraction form
    87,282.63/130,981.35 = 47,867.42/x
  3. Step 3: Cross multiply
    87,282.63x = 130,981.35 × 47,867.42
  4. Step 4: Simplify right side
    87,282.63x = 6,269,739,799.57
  5. Step 5: Solve for x
    x = 6,269,739,799.57/87,282.63
  6. Step 6: Final answer
    x = 71,832.62

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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.