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Finding the Fourth Proportional to 57,326.64, 85,990.98 and 19,888.04

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Solution

The fourth proportional to 57,326.64, 85,990.98 and 19,888.04 is: 29,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,326.64 : 85,990.98 = 19,888.04 : x
  2. Step 2: Convert to fraction form
    57,326.64/85,990.98 = 19,888.04/x
  3. Step 3: Cross multiply
    57,326.64x = 85,990.98 × 19,888.04
  4. Step 4: Simplify right side
    57,326.64x = 1,710,192,049.88
  5. Step 5: Solve for x
    x = 1,710,192,049.88/57,326.64
  6. Step 6: Final answer
    x = 29,832.41

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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.