Home / 84,549.30-126,732.42-54,988.35

Finding the Fourth Proportional to 84,549.30, 126,732.42 and 54,988.35

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Solution

The fourth proportional to 84,549.30, 126,732.42 and 54,988.35 is: 82,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,549.30 : 126,732.42 = 54,988.35 : x
  2. Step 2: Convert to fraction form
    84,549.30/126,732.42 = 54,988.35/x
  3. Step 3: Cross multiply
    84,549.30x = 126,732.42 × 54,988.35
  4. Step 4: Simplify right side
    84,549.30x = 6,968,806,667.31
  5. Step 5: Solve for x
    x = 6,968,806,667.31/84,549.30
  6. Step 6: Final answer
    x = 82,423.00

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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.