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Finding the Fourth Proportional to 85,472.84, 127,883.88 and 51,614.21

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Solution

The fourth proportional to 85,472.84, 127,883.88 and 51,614.21 is: 77,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,472.84 : 127,883.88 = 51,614.21 : x
  2. Step 2: Convert to fraction form
    85,472.84/127,883.88 = 51,614.21/x
  3. Step 3: Cross multiply
    85,472.84x = 127,883.88 × 51,614.21
  4. Step 4: Simplify right side
    85,472.84x = 6,600,624,798.52
  5. Step 5: Solve for x
    x = 6,600,624,798.52/85,472.84
  6. Step 6: Final answer
    x = 77,224.83

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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.