Home / 87,332.51-130,905.33-45,170.14

Finding the Fourth Proportional to 87,332.51, 130,905.33 and 45,170.14

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Solution

The fourth proportional to 87,332.51, 130,905.33 and 45,170.14 is: 67,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,332.51 : 130,905.33 = 45,170.14 : x
  2. Step 2: Convert to fraction form
    87,332.51/130,905.33 = 45,170.14/x
  3. Step 3: Cross multiply
    87,332.51x = 130,905.33 × 45,170.14
  4. Step 4: Simplify right side
    87,332.51x = 5,913,011,755.58
  5. Step 5: Solve for x
    x = 5,913,011,755.58/87,332.51
  6. Step 6: Final answer
    x = 67,706.88

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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.