Home / 54,138.72-74,713.08-30,266.40

Finding the Fourth Proportional to 54,138.72, 74,713.08 and 30,266.40

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Solution

The fourth proportional to 54,138.72, 74,713.08 and 30,266.40 is: 41,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,138.72 : 74,713.08 = 30,266.40 : x
  2. Step 2: Convert to fraction form
    54,138.72/74,713.08 = 30,266.40/x
  3. Step 3: Cross multiply
    54,138.72x = 74,713.08 × 30,266.40
  4. Step 4: Simplify right side
    54,138.72x = 2,261,295,964.51
  5. Step 5: Solve for x
    x = 2,261,295,964.51/54,138.72
  6. Step 6: Final answer
    x = 41,768.55

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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.