Home / 79,781.16-110,099.28-43,970.65

Finding the Fourth Proportional to 79,781.16, 110,099.28 and 43,970.65

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Solution

The fourth proportional to 79,781.16, 110,099.28 and 43,970.65 is: 60,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,781.16 : 110,099.28 = 43,970.65 : x
  2. Step 2: Convert to fraction form
    79,781.16/110,099.28 = 43,970.65/x
  3. Step 3: Cross multiply
    79,781.16x = 110,099.28 × 43,970.65
  4. Step 4: Simplify right side
    79,781.16x = 4,841,136,906.13
  5. Step 5: Solve for x
    x = 4,841,136,906.13/79,781.16
  6. Step 6: Final answer
    x = 60,680.20

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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.