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Finding the Fourth Proportional to 57,125.91, 85,692.50 and 17,679.71

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Solution

The fourth proportional to 57,125.91, 85,692.50 and 17,679.71 is: 26,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,125.91 : 85,692.50 = 17,679.71 : x
  2. Step 2: Convert to fraction form
    57,125.91/85,692.50 = 17,679.71/x
  3. Step 3: Cross multiply
    57,125.91x = 85,692.50 × 17,679.71
  4. Step 4: Simplify right side
    57,125.91x = 1,515,018,549.18
  5. Step 5: Solve for x
    x = 1,515,018,549.18/57,125.91
  6. Step 6: Final answer
    x = 26,520.69

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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.