Home / 54,149.90-74,728.51-30,280.82

Finding the Fourth Proportional to 54,149.90, 74,728.51 and 30,280.82

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Solution

The fourth proportional to 54,149.90, 74,728.51 and 30,280.82 is: 41,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,149.90 : 74,728.51 = 30,280.82 : x
  2. Step 2: Convert to fraction form
    54,149.90/74,728.51 = 30,280.82/x
  3. Step 3: Cross multiply
    54,149.90x = 74,728.51 × 30,280.82
  4. Step 4: Simplify right side
    54,149.90x = 2,262,840,110.83
  5. Step 5: Solve for x
    x = 2,262,840,110.83/54,149.90
  6. Step 6: Final answer
    x = 41,788.45

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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.