Home / 54,291.20-74,923.31-30,417.32

Finding the Fourth Proportional to 54,291.20, 74,923.31 and 30,417.32

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Solution

The fourth proportional to 54,291.20, 74,923.31 and 30,417.32 is: 41,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,291.20 : 74,923.31 = 30,417.32 : x
  2. Step 2: Convert to fraction form
    54,291.20/74,923.31 = 30,417.32/x
  3. Step 3: Cross multiply
    54,291.20x = 74,923.31 × 30,417.32
  4. Step 4: Simplify right side
    54,291.20x = 2,278,966,559.08
  5. Step 5: Solve for x
    x = 2,278,966,559.08/54,291.20
  6. Step 6: Final answer
    x = 41,976.72

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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.