Home / 79,949.76-110,340-66,497.28

Finding the Fourth Proportional to 79,949.76, 110,340 and 66,497.28

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Solution

The fourth proportional to 79,949.76, 110,340 and 66,497.28 is: 91,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,949.76 : 110,340 = 66,497.28 : x
  2. Step 2: Convert to fraction form
    79,949.76/110,340 = 66,497.28/x
  3. Step 3: Cross multiply
    79,949.76x = 110,340 × 66,497.28
  4. Step 4: Simplify right side
    79,949.76x = 7,337,309,875.20
  5. Step 5: Solve for x
    x = 7,337,309,875.20/79,949.76
  6. Step 6: Final answer
    x = 91,774.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.