Home / 87,164.48-120,278.88-58,908.16

Finding the Fourth Proportional to 87,164.48, 120,278.88 and 58,908.16

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Solution

The fourth proportional to 87,164.48, 120,278.88 and 58,908.16 is: 81,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,164.48 : 120,278.88 = 58,908.16 : x
  2. Step 2: Convert to fraction form
    87,164.48/120,278.88 = 58,908.16/x
  3. Step 3: Cross multiply
    87,164.48x = 120,278.88 × 58,908.16
  4. Step 4: Simplify right side
    87,164.48x = 7,085,407,507.66
  5. Step 5: Solve for x
    x = 7,085,407,507.66/87,164.48
  6. Step 6: Final answer
    x = 81,287.78

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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.