Home / 79,572-109,812.12-43,764.72

Finding the Fourth Proportional to 79,572, 109,812.12 and 43,764.72

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Solution

The fourth proportional to 79,572, 109,812.12 and 43,764.72 is: 60,396.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,572 : 109,812.12 = 43,764.72 : x
  2. Step 2: Convert to fraction form
    79,572/109,812.12 = 43,764.72/x
  3. Step 3: Cross multiply
    79,572x = 109,812.12 × 43,764.72
  4. Step 4: Simplify right side
    79,572x = 4,805,896,684.41
  5. Step 5: Solve for x
    x = 4,805,896,684.41/79,572
  6. Step 6: Final answer
    x = 60,396.83

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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.