Home / 48,429.87-72,754.17-28,721.36

Finding the Fourth Proportional to 48,429.87, 72,754.17 and 28,721.36

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Solution

The fourth proportional to 48,429.87, 72,754.17 and 28,721.36 is: 43,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,429.87 : 72,754.17 = 28,721.36 : x
  2. Step 2: Convert to fraction form
    48,429.87/72,754.17 = 28,721.36/x
  3. Step 3: Cross multiply
    48,429.87x = 72,754.17 × 28,721.36
  4. Step 4: Simplify right side
    48,429.87x = 2,089,598,708.07
  5. Step 5: Solve for x
    x = 2,089,598,708.07/48,429.87
  6. Step 6: Final answer
    x = 43,146.90

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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.