Home / 87,614.39-120,907.76-47,328.15

Finding the Fourth Proportional to 87,614.39, 120,907.76 and 47,328.15

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Solution

The fourth proportional to 87,614.39, 120,907.76 and 47,328.15 is: 65,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,614.39 : 120,907.76 = 47,328.15 : x
  2. Step 2: Convert to fraction form
    87,614.39/120,907.76 = 47,328.15/x
  3. Step 3: Cross multiply
    87,614.39x = 120,907.76 × 47,328.15
  4. Step 4: Simplify right side
    87,614.39x = 5,722,340,719.76
  5. Step 5: Solve for x
    x = 5,722,340,719.76/87,614.39
  6. Step 6: Final answer
    x = 65,312.79

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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.