Home / 73,721.28-101,736-40,189.44

Finding the Fourth Proportional to 73,721.28, 101,736 and 40,189.44

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Solution

The fourth proportional to 73,721.28, 101,736 and 40,189.44 is: 55,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,721.28 : 101,736 = 40,189.44 : x
  2. Step 2: Convert to fraction form
    73,721.28/101,736 = 40,189.44/x
  3. Step 3: Cross multiply
    73,721.28x = 101,736 × 40,189.44
  4. Step 4: Simplify right side
    73,721.28x = 4,088,712,867.84
  5. Step 5: Solve for x
    x = 4,088,712,867.84/73,721.28
  6. Step 6: Final answer
    x = 55,461.77

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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.