Home / 71,622.45-98,838.96-39,359.15

Finding the Fourth Proportional to 71,622.45, 98,838.96 and 39,359.15

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Solution

The fourth proportional to 71,622.45, 98,838.96 and 39,359.15 is: 54,315.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,622.45 : 98,838.96 = 39,359.15 : x
  2. Step 2: Convert to fraction form
    71,622.45/98,838.96 = 39,359.15/x
  3. Step 3: Cross multiply
    71,622.45x = 98,838.96 × 39,359.15
  4. Step 4: Simplify right side
    71,622.45x = 3,890,216,958.29
  5. Step 5: Solve for x
    x = 3,890,216,958.29/71,622.45
  6. Step 6: Final answer
    x = 54,315.61

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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.