Home / 71,891.46-99,208.86-40,059.66

Finding the Fourth Proportional to 71,891.46, 99,208.86 and 40,059.66

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Solution

The fourth proportional to 71,891.46, 99,208.86 and 40,059.66 is: 55,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,891.46 : 99,208.86 = 40,059.66 : x
  2. Step 2: Convert to fraction form
    71,891.46/99,208.86 = 40,059.66/x
  3. Step 3: Cross multiply
    71,891.46x = 99,208.86 × 40,059.66
  4. Step 4: Simplify right side
    71,891.46x = 3,974,273,200.59
  5. Step 5: Solve for x
    x = 3,974,273,200.59/71,891.46
  6. Step 6: Final answer
    x = 55,281.58

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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.