Home / 87,048.20-120,126.88-49,322.45

Finding the Fourth Proportional to 87,048.20, 120,126.88 and 49,322.45

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Solution

The fourth proportional to 87,048.20, 120,126.88 and 49,322.45 is: 68,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,048.20 : 120,126.88 = 49,322.45 : x
  2. Step 2: Convert to fraction form
    87,048.20/120,126.88 = 49,322.45/x
  3. Step 3: Cross multiply
    87,048.20x = 120,126.88 × 49,322.45
  4. Step 4: Simplify right side
    87,048.20x = 5,924,952,394.43
  5. Step 5: Solve for x
    x = 5,924,952,394.43/87,048.20
  6. Step 6: Final answer
    x = 68,065.19

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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.