Home / 78,005.09-107,660.24-45,294.44

Finding the Fourth Proportional to 78,005.09, 107,660.24 and 45,294.44

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Solution

The fourth proportional to 78,005.09, 107,660.24 and 45,294.44 is: 62,514.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,005.09 : 107,660.24 = 45,294.44 : x
  2. Step 2: Convert to fraction form
    78,005.09/107,660.24 = 45,294.44/x
  3. Step 3: Cross multiply
    78,005.09x = 107,660.24 × 45,294.44
  4. Step 4: Simplify right side
    78,005.09x = 4,876,409,856.00
  5. Step 5: Solve for x
    x = 4,876,409,856.00/78,005.09
  6. Step 6: Final answer
    x = 62,514.00

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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.