Home / 78,207.07-107,925.48-43,751.88

Finding the Fourth Proportional to 78,207.07, 107,925.48 and 43,751.88

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Solution

The fourth proportional to 78,207.07, 107,925.48 and 43,751.88 is: 60,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,207.07 : 107,925.48 = 43,751.88 : x
  2. Step 2: Convert to fraction form
    78,207.07/107,925.48 = 43,751.88/x
  3. Step 3: Cross multiply
    78,207.07x = 107,925.48 × 43,751.88
  4. Step 4: Simplify right side
    78,207.07x = 4,721,942,649.90
  5. Step 5: Solve for x
    x = 4,721,942,649.90/78,207.07
  6. Step 6: Final answer
    x = 60,377.44

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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.