Home / 71,458.20-98,605.35-39,626.42

Finding the Fourth Proportional to 71,458.20, 98,605.35 and 39,626.42

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Solution

The fourth proportional to 71,458.20, 98,605.35 and 39,626.42 is: 54,680.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,458.20 : 98,605.35 = 39,626.42 : x
  2. Step 2: Convert to fraction form
    71,458.20/98,605.35 = 39,626.42/x
  3. Step 3: Cross multiply
    71,458.20x = 98,605.35 × 39,626.42
  4. Step 4: Simplify right side
    71,458.20x = 3,907,376,520.32
  5. Step 5: Solve for x
    x = 3,907,376,520.32/71,458.20
  6. Step 6: Final answer
    x = 54,680.59

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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.