Home / 78,593.10-117,657.99-51,890.10

Finding the Fourth Proportional to 78,593.10, 117,657.99 and 51,890.10

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Solution

The fourth proportional to 78,593.10, 117,657.99 and 51,890.10 is: 77,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,593.10 : 117,657.99 = 51,890.10 : x
  2. Step 2: Convert to fraction form
    78,593.10/117,657.99 = 51,890.10/x
  3. Step 3: Cross multiply
    78,593.10x = 117,657.99 × 51,890.10
  4. Step 4: Simplify right side
    78,593.10x = 6,105,284,866.90
  5. Step 5: Solve for x
    x = 6,105,284,866.90/78,593.10
  6. Step 6: Final answer
    x = 77,682.20

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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.