Home / 71,799.93-99,087.17-39,970.85

Finding the Fourth Proportional to 71,799.93, 99,087.17 and 39,970.85

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Solution

The fourth proportional to 71,799.93, 99,087.17 and 39,970.85 is: 55,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,799.93 : 99,087.17 = 39,970.85 : x
  2. Step 2: Convert to fraction form
    71,799.93/99,087.17 = 39,970.85/x
  3. Step 3: Cross multiply
    71,799.93x = 99,087.17 × 39,970.85
  4. Step 4: Simplify right side
    71,799.93x = 3,960,597,713.70
  5. Step 5: Solve for x
    x = 3,960,597,713.70/71,799.93
  6. Step 6: Final answer
    x = 55,161.58

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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.