Home / 79,151.61-109,231.70-43,345.02

Finding the Fourth Proportional to 79,151.61, 109,231.70 and 43,345.02

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Solution

The fourth proportional to 79,151.61, 109,231.70 and 43,345.02 is: 59,817.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,151.61 : 109,231.70 = 43,345.02 : x
  2. Step 2: Convert to fraction form
    79,151.61/109,231.70 = 43,345.02/x
  3. Step 3: Cross multiply
    79,151.61x = 109,231.70 × 43,345.02
  4. Step 4: Simplify right side
    79,151.61x = 4,734,650,221.13
  5. Step 5: Solve for x
    x = 4,734,650,221.13/79,151.61
  6. Step 6: Final answer
    x = 59,817.48

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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.