Home / 71,479.20-98,634.27-39,647.46

Finding the Fourth Proportional to 71,479.20, 98,634.27 and 39,647.46

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Solution

The fourth proportional to 71,479.20, 98,634.27 and 39,647.46 is: 54,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,479.20 : 98,634.27 = 39,647.46 : x
  2. Step 2: Convert to fraction form
    71,479.20/98,634.27 = 39,647.46/x
  3. Step 3: Cross multiply
    71,479.20x = 98,634.27 × 39,647.46
  4. Step 4: Simplify right side
    71,479.20x = 3,910,598,274.45
  5. Step 5: Solve for x
    x = 3,910,598,274.45/71,479.20
  6. Step 6: Final answer
    x = 54,709.60

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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.