Home / 54,764.22-75,572.78-30,890

Finding the Fourth Proportional to 54,764.22, 75,572.78 and 30,890

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Solution

The fourth proportional to 54,764.22, 75,572.78 and 30,890 is: 42,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,764.22 : 75,572.78 = 30,890 : x
  2. Step 2: Convert to fraction form
    54,764.22/75,572.78 = 30,890/x
  3. Step 3: Cross multiply
    54,764.22x = 75,572.78 × 30,890
  4. Step 4: Simplify right side
    54,764.22x = 2,334,443,174.20
  5. Step 5: Solve for x
    x = 2,334,443,174.20/54,764.22
  6. Step 6: Final answer
    x = 42,627.16

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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.