Home / 78,456.16-117,592.98-36,247.60

Finding the Fourth Proportional to 78,456.16, 117,592.98 and 36,247.60

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Solution

The fourth proportional to 78,456.16, 117,592.98 and 36,247.60 is: 54,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,456.16 : 117,592.98 = 36,247.60 : x
  2. Step 2: Convert to fraction form
    78,456.16/117,592.98 = 36,247.60/x
  3. Step 3: Cross multiply
    78,456.16x = 117,592.98 × 36,247.60
  4. Step 4: Simplify right side
    78,456.16x = 4,262,463,301.85
  5. Step 5: Solve for x
    x = 4,262,463,301.85/78,456.16
  6. Step 6: Final answer
    x = 54,329.24

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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.