Home / 40,129.97-60,102.36-28,815.03

Finding the Fourth Proportional to 40,129.97, 60,102.36 and 28,815.03

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Solution

The fourth proportional to 40,129.97, 60,102.36 and 28,815.03 is: 43,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.97 : 60,102.36 = 28,815.03 : x
  2. Step 2: Convert to fraction form
    40,129.97/60,102.36 = 28,815.03/x
  3. Step 3: Cross multiply
    40,129.97x = 60,102.36 × 28,815.03
  4. Step 4: Simplify right side
    40,129.97x = 1,731,851,306.47
  5. Step 5: Solve for x
    x = 1,731,851,306.47/40,129.97
  6. Step 6: Final answer
    x = 43,156.06

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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.