Home / 84,240.44-126,352.01-28,074.50

Finding the Fourth Proportional to 84,240.44, 126,352.01 and 28,074.50

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Solution

The fourth proportional to 84,240.44, 126,352.01 and 28,074.50 is: 42,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,240.44 : 126,352.01 = 28,074.50 : x
  2. Step 2: Convert to fraction form
    84,240.44/126,352.01 = 28,074.50/x
  3. Step 3: Cross multiply
    84,240.44x = 126,352.01 × 28,074.50
  4. Step 4: Simplify right side
    84,240.44x = 3,547,269,504.75
  5. Step 5: Solve for x
    x = 3,547,269,504.75/84,240.44
  6. Step 6: Final answer
    x = 42,108.87

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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.