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Finding the Fourth Proportional to 84,833.70, 127,250.55 and 71,711.70

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Solution

The fourth proportional to 84,833.70, 127,250.55 and 71,711.70 is: 107,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,833.70 : 127,250.55 = 71,711.70 : x
  2. Step 2: Convert to fraction form
    84,833.70/127,250.55 = 71,711.70/x
  3. Step 3: Cross multiply
    84,833.70x = 127,250.55 × 71,711.70
  4. Step 4: Simplify right side
    84,833.70x = 9,125,353,266.44
  5. Step 5: Solve for x
    x = 9,125,353,266.44/84,833.70
  6. Step 6: Final answer
    x = 107,567.55

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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.