Home / 54,011.38-74,535.76-30,138.06

Finding the Fourth Proportional to 54,011.38, 74,535.76 and 30,138.06

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Solution

The fourth proportional to 54,011.38, 74,535.76 and 30,138.06 is: 41,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,011.38 : 74,535.76 = 30,138.06 : x
  2. Step 2: Convert to fraction form
    54,011.38/74,535.76 = 30,138.06/x
  3. Step 3: Cross multiply
    54,011.38x = 74,535.76 × 30,138.06
  4. Step 4: Simplify right side
    54,011.38x = 2,246,362,935.42
  5. Step 5: Solve for x
    x = 2,246,362,935.42/54,011.38
  6. Step 6: Final answer
    x = 41,590.55

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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.