Home / 55,281.72-76,299.66-38,505

Finding the Fourth Proportional to 55,281.72, 76,299.66 and 38,505

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Solution

The fourth proportional to 55,281.72, 76,299.66 and 38,505 is: 53,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281.72 : 76,299.66 = 38,505 : x
  2. Step 2: Convert to fraction form
    55,281.72/76,299.66 = 38,505/x
  3. Step 3: Cross multiply
    55,281.72x = 76,299.66 × 38,505
  4. Step 4: Simplify right side
    55,281.72x = 2,937,918,408.30
  5. Step 5: Solve for x
    x = 2,937,918,408.30/55,281.72
  6. Step 6: Final answer
    x = 53,144.48

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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.