Home / 87,395.32-120,615.78-49,675.24

Finding the Fourth Proportional to 87,395.32, 120,615.78 and 49,675.24

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Solution

The fourth proportional to 87,395.32, 120,615.78 and 49,675.24 is: 68,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,395.32 : 120,615.78 = 49,675.24 : x
  2. Step 2: Convert to fraction form
    87,395.32/120,615.78 = 49,675.24/x
  3. Step 3: Cross multiply
    87,395.32x = 120,615.78 × 49,675.24
  4. Step 4: Simplify right side
    87,395.32x = 5,991,617,819.29
  5. Step 5: Solve for x
    x = 5,991,617,819.29/87,395.32
  6. Step 6: Final answer
    x = 68,557.65

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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.