Home / 87,485.11-120,733.28-49,247.13

Finding the Fourth Proportional to 87,485.11, 120,733.28 and 49,247.13

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Solution

The fourth proportional to 87,485.11, 120,733.28 and 49,247.13 is: 67,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,485.11 : 120,733.28 = 49,247.13 : x
  2. Step 2: Convert to fraction form
    87,485.11/120,733.28 = 49,247.13/x
  3. Step 3: Cross multiply
    87,485.11x = 120,733.28 × 49,247.13
  4. Step 4: Simplify right side
    87,485.11x = 5,945,767,535.49
  5. Step 5: Solve for x
    x = 5,945,767,535.49/87,485.11
  6. Step 6: Final answer
    x = 67,963.19

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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.