Home / 87,319.81-120,500.85-49,080.34

Finding the Fourth Proportional to 87,319.81, 120,500.85 and 49,080.34

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Solution

The fourth proportional to 87,319.81, 120,500.85 and 49,080.34 is: 67,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,319.81 : 120,500.85 = 49,080.34 : x
  2. Step 2: Convert to fraction form
    87,319.81/120,500.85 = 49,080.34/x
  3. Step 3: Cross multiply
    87,319.81x = 120,500.85 × 49,080.34
  4. Step 4: Simplify right side
    87,319.81x = 5,914,222,688.29
  5. Step 5: Solve for x
    x = 5,914,222,688.29/87,319.81
  6. Step 6: Final answer
    x = 67,730.60

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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.