Home / 72,549.27-108,821.07-19,957.32

Finding the Fourth Proportional to 72,549.27, 108,821.07 and 19,957.32

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Solution

The fourth proportional to 72,549.27, 108,821.07 and 19,957.32 is: 29,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,549.27 : 108,821.07 = 19,957.32 : x
  2. Step 2: Convert to fraction form
    72,549.27/108,821.07 = 19,957.32/x
  3. Step 3: Cross multiply
    72,549.27x = 108,821.07 × 19,957.32
  4. Step 4: Simplify right side
    72,549.27x = 2,171,776,916.73
  5. Step 5: Solve for x
    x = 2,171,776,916.73/72,549.27
  6. Step 6: Final answer
    x = 29,935.20

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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.