Home / 79,154.19-109,252.01-48,921.31

Finding the Fourth Proportional to 79,154.19, 109,252.01 and 48,921.31

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Solution

The fourth proportional to 79,154.19, 109,252.01 and 48,921.31 is: 67,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,154.19 : 109,252.01 = 48,921.31 : x
  2. Step 2: Convert to fraction form
    79,154.19/109,252.01 = 48,921.31/x
  3. Step 3: Cross multiply
    79,154.19x = 109,252.01 × 48,921.31
  4. Step 4: Simplify right side
    79,154.19x = 5,344,751,614.18
  5. Step 5: Solve for x
    x = 5,344,751,614.18/79,154.19
  6. Step 6: Final answer
    x = 67,523.29

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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.