Home / 78,560.16-117,835.84-19,395.52

Finding the Fourth Proportional to 78,560.16, 117,835.84 and 19,395.52

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Solution

The fourth proportional to 78,560.16, 117,835.84 and 19,395.52 is: 29,092.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,560.16 : 117,835.84 = 19,395.52 : x
  2. Step 2: Convert to fraction form
    78,560.16/117,835.84 = 19,395.52/x
  3. Step 3: Cross multiply
    78,560.16x = 117,835.84 × 19,395.52
  4. Step 4: Simplify right side
    78,560.16x = 2,285,487,391.44
  5. Step 5: Solve for x
    x = 2,285,487,391.44/78,560.16
  6. Step 6: Final answer
    x = 29,092.19

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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.