Home / 98,377.19-135,748.19-55,351.38

Finding the Fourth Proportional to 98,377.19, 135,748.19 and 55,351.38

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Solution

The fourth proportional to 98,377.19, 135,748.19 and 55,351.38 is: 76,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,377.19 : 135,748.19 = 55,351.38 : x
  2. Step 2: Convert to fraction form
    98,377.19/135,748.19 = 55,351.38/x
  3. Step 3: Cross multiply
    98,377.19x = 135,748.19 × 55,351.38
  4. Step 4: Simplify right side
    98,377.19x = 7,513,849,372.25
  5. Step 5: Solve for x
    x = 7,513,849,372.25/98,377.19
  6. Step 6: Final answer
    x = 76,377.97

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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.