Home / 87,283.85-130,964.65-45,721.13

Finding the Fourth Proportional to 87,283.85, 130,964.65 and 45,721.13

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Solution

The fourth proportional to 87,283.85, 130,964.65 and 45,721.13 is: 68,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,283.85 : 130,964.65 = 45,721.13 : x
  2. Step 2: Convert to fraction form
    87,283.85/130,964.65 = 45,721.13/x
  3. Step 3: Cross multiply
    87,283.85x = 130,964.65 × 45,721.13
  4. Step 4: Simplify right side
    87,283.85x = 5,987,851,018.93
  5. Step 5: Solve for x
    x = 5,987,851,018.93/87,283.85
  6. Step 6: Final answer
    x = 68,602.05

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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.