Home / 80,666.76-121,001.22-30,749.52

Finding the Fourth Proportional to 80,666.76, 121,001.22 and 30,749.52

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Solution

The fourth proportional to 80,666.76, 121,001.22 and 30,749.52 is: 46,124.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,666.76 : 121,001.22 = 30,749.52 : x
  2. Step 2: Convert to fraction form
    80,666.76/121,001.22 = 30,749.52/x
  3. Step 3: Cross multiply
    80,666.76x = 121,001.22 × 30,749.52
  4. Step 4: Simplify right side
    80,666.76x = 3,720,729,434.41
  5. Step 5: Solve for x
    x = 3,720,729,434.41/80,666.76
  6. Step 6: Final answer
    x = 46,124.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.