Home / 54,278.08-74,903.31-30,404.98

Finding the Fourth Proportional to 54,278.08, 74,903.31 and 30,404.98

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Solution

The fourth proportional to 54,278.08, 74,903.31 and 30,404.98 is: 41,958.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,278.08 : 74,903.31 = 30,404.98 : x
  2. Step 2: Convert to fraction form
    54,278.08/74,903.31 = 30,404.98/x
  3. Step 3: Cross multiply
    54,278.08x = 74,903.31 × 30,404.98
  4. Step 4: Simplify right side
    54,278.08x = 2,277,433,642.48
  5. Step 5: Solve for x
    x = 2,277,433,642.48/54,278.08
  6. Step 6: Final answer
    x = 41,958.63

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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.