Home / 55,727.60-76,904.08-31,854.78

Finding the Fourth Proportional to 55,727.60, 76,904.08 and 31,854.78

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Solution

The fourth proportional to 55,727.60, 76,904.08 and 31,854.78 is: 43,959.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,727.60 : 76,904.08 = 31,854.78 : x
  2. Step 2: Convert to fraction form
    55,727.60/76,904.08 = 31,854.78/x
  3. Step 3: Cross multiply
    55,727.60x = 76,904.08 × 31,854.78
  4. Step 4: Simplify right side
    55,727.60x = 2,449,762,469.87
  5. Step 5: Solve for x
    x = 2,449,762,469.87/55,727.60
  6. Step 6: Final answer
    x = 43,959.59

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1.5x scale

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.