Home / 87,247.57-120,398.46-53,312.85

Finding the Fourth Proportional to 87,247.57, 120,398.46 and 53,312.85

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Solution

The fourth proportional to 87,247.57, 120,398.46 and 53,312.85 is: 73,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,247.57 : 120,398.46 = 53,312.85 : x
  2. Step 2: Convert to fraction form
    87,247.57/120,398.46 = 53,312.85/x
  3. Step 3: Cross multiply
    87,247.57x = 120,398.46 × 53,312.85
  4. Step 4: Simplify right side
    87,247.57x = 6,418,785,038.21
  5. Step 5: Solve for x
    x = 6,418,785,038.21/87,247.57
  6. Step 6: Final answer
    x = 73,569.79

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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.