Home / 87,161.12-130,741.76-60,917.12

Finding the Fourth Proportional to 87,161.12, 130,741.76 and 60,917.12

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Solution

The fourth proportional to 87,161.12, 130,741.76 and 60,917.12 is: 91,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,161.12 : 130,741.76 = 60,917.12 : x
  2. Step 2: Convert to fraction form
    87,161.12/130,741.76 = 60,917.12/x
  3. Step 3: Cross multiply
    87,161.12x = 130,741.76 × 60,917.12
  4. Step 4: Simplify right side
    87,161.12x = 7,964,411,482.93
  5. Step 5: Solve for x
    x = 7,964,411,482.93/87,161.12
  6. Step 6: Final answer
    x = 91,375.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.