Home / 78,839.20-118,222.35-34,443.10

Finding the Fourth Proportional to 78,839.20, 118,222.35 and 34,443.10

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Solution

The fourth proportional to 78,839.20, 118,222.35 and 34,443.10 is: 51,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,839.20 : 118,222.35 = 34,443.10 : x
  2. Step 2: Convert to fraction form
    78,839.20/118,222.35 = 34,443.10/x
  3. Step 3: Cross multiply
    78,839.20x = 118,222.35 × 34,443.10
  4. Step 4: Simplify right side
    78,839.20x = 4,071,944,223.29
  5. Step 5: Solve for x
    x = 4,071,944,223.29/78,839.20
  6. Step 6: Final answer
    x = 51,648.73

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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.