Home / 71,827.74-99,121.71-39,995.94

Finding the Fourth Proportional to 71,827.74, 99,121.71 and 39,995.94

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Solution

The fourth proportional to 71,827.74, 99,121.71 and 39,995.94 is: 55,194.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,827.74 : 99,121.71 = 39,995.94 : x
  2. Step 2: Convert to fraction form
    71,827.74/99,121.71 = 39,995.94/x
  3. Step 3: Cross multiply
    71,827.74x = 99,121.71 × 39,995.94
  4. Step 4: Simplify right side
    71,827.74x = 3,964,465,965.86
  5. Step 5: Solve for x
    x = 3,964,465,965.86/71,827.74
  6. Step 6: Final answer
    x = 55,194.08

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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.