Home / 55,458.68-76,540.90-31,587.57

Finding the Fourth Proportional to 55,458.68, 76,540.90 and 31,587.57

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Solution

The fourth proportional to 55,458.68, 76,540.90 and 31,587.57 is: 43,595.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,458.68 : 76,540.90 = 31,587.57 : x
  2. Step 2: Convert to fraction form
    55,458.68/76,540.90 = 31,587.57/x
  3. Step 3: Cross multiply
    55,458.68x = 76,540.90 × 31,587.57
  4. Step 4: Simplify right side
    55,458.68x = 2,417,741,016.87
  5. Step 5: Solve for x
    x = 2,417,741,016.87/55,458.68
  6. Step 6: Final answer
    x = 43,595.36

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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.