Home / 54,481.68-75,176.28-30,603.78

Finding the Fourth Proportional to 54,481.68, 75,176.28 and 30,603.78

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Solution

The fourth proportional to 54,481.68, 75,176.28 and 30,603.78 is: 42,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,481.68 : 75,176.28 = 30,603.78 : x
  2. Step 2: Convert to fraction form
    54,481.68/75,176.28 = 30,603.78/x
  3. Step 3: Cross multiply
    54,481.68x = 75,176.28 × 30,603.78
  4. Step 4: Simplify right side
    54,481.68x = 2,300,678,334.34
  5. Step 5: Solve for x
    x = 2,300,678,334.34/54,481.68
  6. Step 6: Final answer
    x = 42,228.48

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1.5x scale

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.