Home / 54,761.76-75,571.92-30,886.20

Finding the Fourth Proportional to 54,761.76, 75,571.92 and 30,886.20

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Solution

The fourth proportional to 54,761.76, 75,571.92 and 30,886.20 is: 42,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,761.76 : 75,571.92 = 30,886.20 : x
  2. Step 2: Convert to fraction form
    54,761.76/75,571.92 = 30,886.20/x
  3. Step 3: Cross multiply
    54,761.76x = 75,571.92 × 30,886.20
  4. Step 4: Simplify right side
    54,761.76x = 2,334,129,435.50
  5. Step 5: Solve for x
    x = 2,334,129,435.50/54,761.76
  6. Step 6: Final answer
    x = 42,623.35

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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.