Home / 84,909-127,188.45-49,742.04

Finding the Fourth Proportional to 84,909, 127,188.45 and 49,742.04

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Solution

The fourth proportional to 84,909, 127,188.45 and 49,742.04 is: 74,510.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,909 : 127,188.45 = 49,742.04 : x
  2. Step 2: Convert to fraction form
    84,909/127,188.45 = 49,742.04/x
  3. Step 3: Cross multiply
    84,909x = 127,188.45 × 49,742.04
  4. Step 4: Simplify right side
    84,909x = 6,326,612,967.44
  5. Step 5: Solve for x
    x = 6,326,612,967.44/84,909
  6. Step 6: Final answer
    x = 74,510.51

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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.