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Finding the Fourth Proportional to 56,753.52, 85,129.48 and 19,339.66

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Solution

The fourth proportional to 56,753.52, 85,129.48 and 19,339.66 is: 29,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,753.52 : 85,129.48 = 19,339.66 : x
  2. Step 2: Convert to fraction form
    56,753.52/85,129.48 = 19,339.66/x
  3. Step 3: Cross multiply
    56,753.52x = 85,129.48 × 19,339.66
  4. Step 4: Simplify right side
    56,753.52x = 1,646,375,199.18
  5. Step 5: Solve for x
    x = 1,646,375,199.18/56,753.52
  6. Step 6: Final answer
    x = 29,009.22

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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.