Home / 54,648.68-75,415.45-30,775.76

Finding the Fourth Proportional to 54,648.68, 75,415.45 and 30,775.76

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Solution

The fourth proportional to 54,648.68, 75,415.45 and 30,775.76 is: 42,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,648.68 : 75,415.45 = 30,775.76 : x
  2. Step 2: Convert to fraction form
    54,648.68/75,415.45 = 30,775.76/x
  3. Step 3: Cross multiply
    54,648.68x = 75,415.45 × 30,775.76
  4. Step 4: Simplify right side
    54,648.68x = 2,320,967,335.48
  5. Step 5: Solve for x
    x = 2,320,967,335.48/54,648.68
  6. Step 6: Final answer
    x = 42,470.70

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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.