Home / 55,610.20-76,723.14-31,719.70

Finding the Fourth Proportional to 55,610.20, 76,723.14 and 31,719.70

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Solution

The fourth proportional to 55,610.20, 76,723.14 and 31,719.70 is: 43,762.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,610.20 : 76,723.14 = 31,719.70 : x
  2. Step 2: Convert to fraction form
    55,610.20/76,723.14 = 31,719.70/x
  3. Step 3: Cross multiply
    55,610.20x = 76,723.14 × 31,719.70
  4. Step 4: Simplify right side
    55,610.20x = 2,433,634,983.86
  5. Step 5: Solve for x
    x = 2,433,634,983.86/55,610.20
  6. Step 6: Final answer
    x = 43,762.39

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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.