Home / 77,951.28-116,872.49-39,926.70

Finding the Fourth Proportional to 77,951.28, 116,872.49 and 39,926.70

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Solution

The fourth proportional to 77,951.28, 116,872.49 and 39,926.70 is: 59,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,951.28 : 116,872.49 = 39,926.70 : x
  2. Step 2: Convert to fraction form
    77,951.28/116,872.49 = 39,926.70/x
  3. Step 3: Cross multiply
    77,951.28x = 116,872.49 × 39,926.70
  4. Step 4: Simplify right side
    77,951.28x = 4,666,332,416.36
  5. Step 5: Solve for x
    x = 4,666,332,416.36/77,951.28
  6. Step 6: Final answer
    x = 59,862.17

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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.