Home / 81,291.74-121,925.18-22,132.04

Finding the Fourth Proportional to 81,291.74, 121,925.18 and 22,132.04

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Solution

The fourth proportional to 81,291.74, 121,925.18 and 22,132.04 is: 33,194.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,291.74 : 121,925.18 = 22,132.04 : x
  2. Step 2: Convert to fraction form
    81,291.74/121,925.18 = 22,132.04/x
  3. Step 3: Cross multiply
    81,291.74x = 121,925.18 × 22,132.04
  4. Step 4: Simplify right side
    81,291.74x = 2,698,452,406.47
  5. Step 5: Solve for x
    x = 2,698,452,406.47/81,291.74
  6. Step 6: Final answer
    x = 33,194.67

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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.