Home / 78,565.14-108,456.98-50,287.23

Finding the Fourth Proportional to 78,565.14, 108,456.98 and 50,287.23

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Solution

The fourth proportional to 78,565.14, 108,456.98 and 50,287.23 is: 69,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,565.14 : 108,456.98 = 50,287.23 : x
  2. Step 2: Convert to fraction form
    78,565.14/108,456.98 = 50,287.23/x
  3. Step 3: Cross multiply
    78,565.14x = 108,456.98 × 50,287.23
  4. Step 4: Simplify right side
    78,565.14x = 5,454,000,846.93
  5. Step 5: Solve for x
    x = 5,454,000,846.93/78,565.14
  6. Step 6: Final answer
    x = 69,420.11

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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.