Home / 87,588.29-120,887.26-83,594.70

Finding the Fourth Proportional to 87,588.29, 120,887.26 and 83,594.70

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Solution

The fourth proportional to 87,588.29, 120,887.26 and 83,594.70 is: 115,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,588.29 : 120,887.26 = 83,594.70 : x
  2. Step 2: Convert to fraction form
    87,588.29/120,887.26 = 83,594.70/x
  3. Step 3: Cross multiply
    87,588.29x = 120,887.26 × 83,594.70
  4. Step 4: Simplify right side
    87,588.29x = 10,105,534,125.02
  5. Step 5: Solve for x
    x = 10,105,534,125.02/87,588.29
  6. Step 6: Final answer
    x = 115,375.40

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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.