Home / 55,456.26-76,565.40-49,477.55

Finding the Fourth Proportional to 55,456.26, 76,565.40 and 49,477.55

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Solution

The fourth proportional to 55,456.26, 76,565.40 and 49,477.55 is: 68,310.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,456.26 : 76,565.40 = 49,477.55 : x
  2. Step 2: Convert to fraction form
    55,456.26/76,565.40 = 49,477.55/x
  3. Step 3: Cross multiply
    55,456.26x = 76,565.40 × 49,477.55
  4. Step 4: Simplify right side
    55,456.26x = 3,788,268,023.94
  5. Step 5: Solve for x
    x = 3,788,268,023.94/55,456.26
  6. Step 6: Final answer
    x = 68,310.92

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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.