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Finding the Fourth Proportional to 57,281.40, 85,897.80 and 27,708.30

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Solution

The fourth proportional to 57,281.40, 85,897.80 and 27,708.30 is: 41,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,281.40 : 85,897.80 = 27,708.30 : x
  2. Step 2: Convert to fraction form
    57,281.40/85,897.80 = 27,708.30/x
  3. Step 3: Cross multiply
    57,281.40x = 85,897.80 × 27,708.30
  4. Step 4: Simplify right side
    57,281.40x = 2,380,082,011.74
  5. Step 5: Solve for x
    x = 2,380,082,011.74/57,281.40
  6. Step 6: Final answer
    x = 41,550.70

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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.