Home / 98,401.30-135,782.58-55,372.48

Finding the Fourth Proportional to 98,401.30, 135,782.58 and 55,372.48

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Solution

The fourth proportional to 98,401.30, 135,782.58 and 55,372.48 is: 76,407.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,401.30 : 135,782.58 = 55,372.48 : x
  2. Step 2: Convert to fraction form
    98,401.30/135,782.58 = 55,372.48/x
  3. Step 3: Cross multiply
    98,401.30x = 135,782.58 × 55,372.48
  4. Step 4: Simplify right side
    98,401.30x = 7,518,618,195.40
  5. Step 5: Solve for x
    x = 7,518,618,195.40/98,401.30
  6. Step 6: Final answer
    x = 76,407.71

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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.