Home / 45,381.20-68,071.80-17,661.20

Finding the Fourth Proportional to 45,381.20, 68,071.80 and 17,661.20

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Solution

The fourth proportional to 45,381.20, 68,071.80 and 17,661.20 is: 26,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,381.20 : 68,071.80 = 17,661.20 : x
  2. Step 2: Convert to fraction form
    45,381.20/68,071.80 = 17,661.20/x
  3. Step 3: Cross multiply
    45,381.20x = 68,071.80 × 17,661.20
  4. Step 4: Simplify right side
    45,381.20x = 1,202,229,674.16
  5. Step 5: Solve for x
    x = 1,202,229,674.16/45,381.20
  6. Step 6: Final answer
    x = 26,491.80

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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.