Home / 71,765.24-99,039.92-39,934.83

Finding the Fourth Proportional to 71,765.24, 99,039.92 and 39,934.83

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Solution

The fourth proportional to 71,765.24, 99,039.92 and 39,934.83 is: 55,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,765.24 : 99,039.92 = 39,934.83 : x
  2. Step 2: Convert to fraction form
    71,765.24/99,039.92 = 39,934.83/x
  3. Step 3: Cross multiply
    71,765.24x = 99,039.92 × 39,934.83
  4. Step 4: Simplify right side
    71,765.24x = 3,955,142,368.41
  5. Step 5: Solve for x
    x = 3,955,142,368.41/71,765.24
  6. Step 6: Final answer
    x = 55,112.23

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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.