Home / 48,519.62-72,718.09-21,837.20

Finding the Fourth Proportional to 48,519.62, 72,718.09 and 21,837.20

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Solution

The fourth proportional to 48,519.62, 72,718.09 and 21,837.20 is: 32,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,519.62 : 72,718.09 = 21,837.20 : x
  2. Step 2: Convert to fraction form
    48,519.62/72,718.09 = 21,837.20/x
  3. Step 3: Cross multiply
    48,519.62x = 72,718.09 × 21,837.20
  4. Step 4: Simplify right side
    48,519.62x = 1,587,959,148.89
  5. Step 5: Solve for x
    x = 1,587,959,148.89/48,519.62
  6. Step 6: Final answer
    x = 32,728.19

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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.