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Finding the Fourth Proportional to 56,689.47, 85,046.49 and 17,245.55

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Solution

The fourth proportional to 56,689.47, 85,046.49 and 17,245.55 is: 25,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.47 : 85,046.49 = 17,245.55 : x
  2. Step 2: Convert to fraction form
    56,689.47/85,046.49 = 17,245.55/x
  3. Step 3: Cross multiply
    56,689.47x = 85,046.49 × 17,245.55
  4. Step 4: Simplify right side
    56,689.47x = 1,466,673,070.39
  5. Step 5: Solve for x
    x = 1,466,673,070.39/56,689.47
  6. Step 6: Final answer
    x = 25,872.05

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1.5x scale

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.