Home / 85,648.28-128,463.17-22,474.76

Finding the Fourth Proportional to 85,648.28, 128,463.17 and 22,474.76

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Solution

The fourth proportional to 85,648.28, 128,463.17 and 22,474.76 is: 33,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,648.28 : 128,463.17 = 22,474.76 : x
  2. Step 2: Convert to fraction form
    85,648.28/128,463.17 = 22,474.76/x
  3. Step 3: Cross multiply
    85,648.28x = 128,463.17 × 22,474.76
  4. Step 4: Simplify right side
    85,648.28x = 2,887,178,328.46
  5. Step 5: Solve for x
    x = 2,887,178,328.46/85,648.28
  6. Step 6: Final answer
    x = 33,709.71

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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.