Home / 84,938.10-127,358.55-25,764.90

Finding the Fourth Proportional to 84,938.10, 127,358.55 and 25,764.90

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Solution

The fourth proportional to 84,938.10, 127,358.55 and 25,764.90 is: 38,632.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,938.10 : 127,358.55 = 25,764.90 : x
  2. Step 2: Convert to fraction form
    84,938.10/127,358.55 = 25,764.90/x
  3. Step 3: Cross multiply
    84,938.10x = 127,358.55 × 25,764.90
  4. Step 4: Simplify right side
    84,938.10x = 3,281,380,304.90
  5. Step 5: Solve for x
    x = 3,281,380,304.90/84,938.10
  6. Step 6: Final answer
    x = 38,632.61

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1.5x scale

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.