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Finding the Fourth Proportional to 57,029.40, 85,459.68 and 50,801.40

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Solution

The fourth proportional to 57,029.40, 85,459.68 and 50,801.40 is: 76,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029.40 : 85,459.68 = 50,801.40 : x
  2. Step 2: Convert to fraction form
    57,029.40/85,459.68 = 50,801.40/x
  3. Step 3: Cross multiply
    57,029.40x = 85,459.68 × 50,801.40
  4. Step 4: Simplify right side
    57,029.40x = 4,341,471,387.55
  5. Step 5: Solve for x
    x = 4,341,471,387.55/57,029.40
  6. Step 6: Final answer
    x = 76,126.90

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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.