Home / 71,434.39-107,116.95-21,505.18

Finding the Fourth Proportional to 71,434.39, 107,116.95 and 21,505.18

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Solution

The fourth proportional to 71,434.39, 107,116.95 and 21,505.18 is: 32,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,434.39 : 107,116.95 = 21,505.18 : x
  2. Step 2: Convert to fraction form
    71,434.39/107,116.95 = 21,505.18/x
  3. Step 3: Cross multiply
    71,434.39x = 107,116.95 × 21,505.18
  4. Step 4: Simplify right side
    71,434.39x = 2,303,569,290.80
  5. Step 5: Solve for x
    x = 2,303,569,290.80/71,434.39
  6. Step 6: Final answer
    x = 32,247.34

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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.