Home / 71,946.39-99,282.38-40,109.13

Finding the Fourth Proportional to 71,946.39, 99,282.38 and 40,109.13

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Solution

The fourth proportional to 71,946.39, 99,282.38 and 40,109.13 is: 55,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,946.39 : 99,282.38 = 40,109.13 : x
  2. Step 2: Convert to fraction form
    71,946.39/99,282.38 = 40,109.13/x
  3. Step 3: Cross multiply
    71,946.39x = 99,282.38 × 40,109.13
  4. Step 4: Simplify right side
    71,946.39x = 3,982,129,685.58
  5. Step 5: Solve for x
    x = 3,982,129,685.58/71,946.39
  6. Step 6: Final answer
    x = 55,348.57

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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.