Home / 84,486.28-126,624.02-73,931.20

Finding the Fourth Proportional to 84,486.28, 126,624.02 and 73,931.20

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Solution

The fourth proportional to 84,486.28, 126,624.02 and 73,931.20 is: 110,804.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,486.28 : 126,624.02 = 73,931.20 : x
  2. Step 2: Convert to fraction form
    84,486.28/126,624.02 = 73,931.20/x
  3. Step 3: Cross multiply
    84,486.28x = 126,624.02 × 73,931.20
  4. Step 4: Simplify right side
    84,486.28x = 9,361,465,747.42
  5. Step 5: Solve for x
    x = 9,361,465,747.42/84,486.28
  6. Step 6: Final answer
    x = 110,804.57

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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.