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Finding the Fourth Proportional to 56,726.98, 85,103.16 and 17,287.18

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Solution

The fourth proportional to 56,726.98, 85,103.16 and 17,287.18 is: 25,934.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,726.98 : 85,103.16 = 17,287.18 : x
  2. Step 2: Convert to fraction form
    56,726.98/85,103.16 = 17,287.18/x
  3. Step 3: Cross multiply
    56,726.98x = 85,103.16 × 17,287.18
  4. Step 4: Simplify right side
    56,726.98x = 1,471,193,645.49
  5. Step 5: Solve for x
    x = 1,471,193,645.49/56,726.98
  6. Step 6: Final answer
    x = 25,934.64

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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.