Home / 84,591.38-126,895.64-31,297.43

Finding the Fourth Proportional to 84,591.38, 126,895.64 and 31,297.43

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Solution

The fourth proportional to 84,591.38, 126,895.64 and 31,297.43 is: 46,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,591.38 : 126,895.64 = 31,297.43 : x
  2. Step 2: Convert to fraction form
    84,591.38/126,895.64 = 31,297.43/x
  3. Step 3: Cross multiply
    84,591.38x = 126,895.64 × 31,297.43
  4. Step 4: Simplify right side
    84,591.38x = 3,971,506,619.24
  5. Step 5: Solve for x
    x = 3,971,506,619.24/84,591.38
  6. Step 6: Final answer
    x = 46,949.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.