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Finding the Fourth Proportional to 84,814.65, 127,028.21 and 40,472.55

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Solution

The fourth proportional to 84,814.65, 127,028.21 and 40,472.55 is: 60,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,814.65 : 127,028.21 = 40,472.55 : x
  2. Step 2: Convert to fraction form
    84,814.65/127,028.21 = 40,472.55/x
  3. Step 3: Cross multiply
    84,814.65x = 127,028.21 × 40,472.55
  4. Step 4: Simplify right side
    84,814.65x = 5,141,155,205.46
  5. Step 5: Solve for x
    x = 5,141,155,205.46/84,814.65
  6. Step 6: Final answer
    x = 60,616.36

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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.