Home / 78,982.17-118,470.83-26,392.11

Finding the Fourth Proportional to 78,982.17, 118,470.83 and 26,392.11

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Solution

The fourth proportional to 78,982.17, 118,470.83 and 26,392.11 is: 39,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,982.17 : 118,470.83 = 26,392.11 : x
  2. Step 2: Convert to fraction form
    78,982.17/118,470.83 = 26,392.11/x
  3. Step 3: Cross multiply
    78,982.17x = 118,470.83 × 26,392.11
  4. Step 4: Simplify right side
    78,982.17x = 3,126,695,045.19
  5. Step 5: Solve for x
    x = 3,126,695,045.19/78,982.17
  6. Step 6: Final answer
    x = 39,587.35

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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.