Home / 84,513.12-126,760.06-22,188.48

Finding the Fourth Proportional to 84,513.12, 126,760.06 and 22,188.48

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Solution

The fourth proportional to 84,513.12, 126,760.06 and 22,188.48 is: 33,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,513.12 : 126,760.06 = 22,188.48 : x
  2. Step 2: Convert to fraction form
    84,513.12/126,760.06 = 22,188.48/x
  3. Step 3: Cross multiply
    84,513.12x = 126,760.06 × 22,188.48
  4. Step 4: Simplify right side
    84,513.12x = 2,812,613,056.11
  5. Step 5: Solve for x
    x = 2,812,613,056.11/84,513.12
  6. Step 6: Final answer
    x = 33,280.19

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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.