Home / 79,266.40-109,387.20-43,457.92

Finding the Fourth Proportional to 79,266.40, 109,387.20 and 43,457.92

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Solution

The fourth proportional to 79,266.40, 109,387.20 and 43,457.92 is: 59,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,266.40 : 109,387.20 = 43,457.92 : x
  2. Step 2: Convert to fraction form
    79,266.40/109,387.20 = 43,457.92/x
  3. Step 3: Cross multiply
    79,266.40x = 109,387.20 × 43,457.92
  4. Step 4: Simplify right side
    79,266.40x = 4,753,740,186.62
  5. Step 5: Solve for x
    x = 4,753,740,186.62/79,266.40
  6. Step 6: Final answer
    x = 59,971.69

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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.