Home / 84,306.79-116,876.07-79,812.43

Finding the Fourth Proportional to 84,306.79, 116,876.07 and 79,812.43

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Solution

The fourth proportional to 84,306.79, 116,876.07 and 79,812.43 is: 110,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,306.79 : 116,876.07 = 79,812.43 : x
  2. Step 2: Convert to fraction form
    84,306.79/116,876.07 = 79,812.43/x
  3. Step 3: Cross multiply
    84,306.79x = 116,876.07 × 79,812.43
  4. Step 4: Simplify right side
    84,306.79x = 9,328,163,155.55
  5. Step 5: Solve for x
    x = 9,328,163,155.55/84,306.79
  6. Step 6: Final answer
    x = 110,645.46

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.