Home / 78,726.11-108,638.10-44,730.11

Finding the Fourth Proportional to 78,726.11, 108,638.10 and 44,730.11

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Solution

The fourth proportional to 78,726.11, 108,638.10 and 44,730.11 is: 61,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,726.11 : 108,638.10 = 44,730.11 : x
  2. Step 2: Convert to fraction form
    78,726.11/108,638.10 = 44,730.11/x
  3. Step 3: Cross multiply
    78,726.11x = 108,638.10 × 44,730.11
  4. Step 4: Simplify right side
    78,726.11x = 4,859,393,620.00
  5. Step 5: Solve for x
    x = 4,859,393,620.00/78,726.11
  6. Step 6: Final answer
    x = 61,725.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.