Home / 87,369.65-130,888.28-45,186.54

Finding the Fourth Proportional to 87,369.65, 130,888.28 and 45,186.54

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Solution

The fourth proportional to 87,369.65, 130,888.28 and 45,186.54 is: 67,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,369.65 : 130,888.28 = 45,186.54 : x
  2. Step 2: Convert to fraction form
    87,369.65/130,888.28 = 45,186.54/x
  3. Step 3: Cross multiply
    87,369.65x = 130,888.28 × 45,186.54
  4. Step 4: Simplify right side
    87,369.65x = 5,914,388,273.82
  5. Step 5: Solve for x
    x = 5,914,388,273.82/87,369.65
  6. Step 6: Final answer
    x = 67,693.86

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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.