Home / 69,121.30-95,390.52-38,917

Finding the Fourth Proportional to 69,121.30, 95,390.52 and 38,917

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Solution

The fourth proportional to 69,121.30, 95,390.52 and 38,917 is: 53,707.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.30 : 95,390.52 = 38,917 : x
  2. Step 2: Convert to fraction form
    69,121.30/95,390.52 = 38,917/x
  3. Step 3: Cross multiply
    69,121.30x = 95,390.52 × 38,917
  4. Step 4: Simplify right side
    69,121.30x = 3,712,312,866.84
  5. Step 5: Solve for x
    x = 3,712,312,866.84/69,121.30
  6. Step 6: Final answer
    x = 53,707.22

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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.