Home / 78,247.23-117,372.06-19,084.02

Finding the Fourth Proportional to 78,247.23, 117,372.06 and 19,084.02

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Solution

The fourth proportional to 78,247.23, 117,372.06 and 19,084.02 is: 28,626.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,247.23 : 117,372.06 = 19,084.02 : x
  2. Step 2: Convert to fraction form
    78,247.23/117,372.06 = 19,084.02/x
  3. Step 3: Cross multiply
    78,247.23x = 117,372.06 × 19,084.02
  4. Step 4: Simplify right side
    78,247.23x = 2,239,930,740.48
  5. Step 5: Solve for x
    x = 2,239,930,740.48/78,247.23
  6. Step 6: Final answer
    x = 28,626.33

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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.