Home / 69,112.60-95,378.45-38,899.88

Finding the Fourth Proportional to 69,112.60, 95,378.45 and 38,899.88

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Solution

The fourth proportional to 69,112.60, 95,378.45 and 38,899.88 is: 53,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,112.60 : 95,378.45 = 38,899.88 : x
  2. Step 2: Convert to fraction form
    69,112.60/95,378.45 = 38,899.88/x
  3. Step 3: Cross multiply
    69,112.60x = 95,378.45 × 38,899.88
  4. Step 4: Simplify right side
    69,112.60x = 3,710,209,879.94
  5. Step 5: Solve for x
    x = 3,710,209,879.94/69,112.60
  6. Step 6: Final answer
    x = 53,683.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.