Home / 55,654.68-76,807.20-31,447.26

Finding the Fourth Proportional to 55,654.68, 76,807.20 and 31,447.26

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Solution

The fourth proportional to 55,654.68, 76,807.20 and 31,447.26 is: 43,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,654.68 : 76,807.20 = 31,447.26 : x
  2. Step 2: Convert to fraction form
    55,654.68/76,807.20 = 31,447.26/x
  3. Step 3: Cross multiply
    55,654.68x = 76,807.20 × 31,447.26
  4. Step 4: Simplify right side
    55,654.68x = 2,415,375,988.27
  5. Step 5: Solve for x
    x = 2,415,375,988.27/55,654.68
  6. Step 6: Final answer
    x = 43,399.33

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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.