Home / 78,418.74-108,227.13-46,587.75

Finding the Fourth Proportional to 78,418.74, 108,227.13 and 46,587.75

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Solution

The fourth proportional to 78,418.74, 108,227.13 and 46,587.75 is: 64,296.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,418.74 : 108,227.13 = 46,587.75 : x
  2. Step 2: Convert to fraction form
    78,418.74/108,227.13 = 46,587.75/x
  3. Step 3: Cross multiply
    78,418.74x = 108,227.13 × 46,587.75
  4. Step 4: Simplify right side
    78,418.74x = 5,042,058,475.66
  5. Step 5: Solve for x
    x = 5,042,058,475.66/78,418.74
  6. Step 6: Final answer
    x = 64,296.60

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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.