Home / 54,780.75-75,600.89-30,898.71

Finding the Fourth Proportional to 54,780.75, 75,600.89 and 30,898.71

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Solution

The fourth proportional to 54,780.75, 75,600.89 and 30,898.71 is: 42,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,780.75 : 75,600.89 = 30,898.71 : x
  2. Step 2: Convert to fraction form
    54,780.75/75,600.89 = 30,898.71/x
  3. Step 3: Cross multiply
    54,780.75x = 75,600.89 × 30,898.71
  4. Step 4: Simplify right side
    54,780.75x = 2,335,969,443.35
  5. Step 5: Solve for x
    x = 2,335,969,443.35/54,780.75
  6. Step 6: Final answer
    x = 42,642.16

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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.