Home / 66,247.64-99,372.06-18,862.70

Finding the Fourth Proportional to 66,247.64, 99,372.06 and 18,862.70

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Solution

The fourth proportional to 66,247.64, 99,372.06 and 18,862.70 is: 28,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,247.64 : 99,372.06 = 18,862.70 : x
  2. Step 2: Convert to fraction form
    66,247.64/99,372.06 = 18,862.70/x
  3. Step 3: Cross multiply
    66,247.64x = 99,372.06 × 18,862.70
  4. Step 4: Simplify right side
    66,247.64x = 1,874,425,010.26
  5. Step 5: Solve for x
    x = 1,874,425,010.26/66,247.64
  6. Step 6: Final answer
    x = 28,294.22

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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.