Home / 71,170.32-98,215.56-39,340.17

Finding the Fourth Proportional to 71,170.32, 98,215.56 and 39,340.17

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Solution

The fourth proportional to 71,170.32, 98,215.56 and 39,340.17 is: 54,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,170.32 : 98,215.56 = 39,340.17 : x
  2. Step 2: Convert to fraction form
    71,170.32/98,215.56 = 39,340.17/x
  3. Step 3: Cross multiply
    71,170.32x = 98,215.56 × 39,340.17
  4. Step 4: Simplify right side
    71,170.32x = 3,863,816,827.05
  5. Step 5: Solve for x
    x = 3,863,816,827.05/71,170.32
  6. Step 6: Final answer
    x = 54,289.72

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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.