Home / 54,342.95-74,979.09-31,367.16

Finding the Fourth Proportional to 54,342.95, 74,979.09 and 31,367.16

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Solution

The fourth proportional to 54,342.95, 74,979.09 and 31,367.16 is: 43,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,342.95 : 74,979.09 = 31,367.16 : x
  2. Step 2: Convert to fraction form
    54,342.95/74,979.09 = 31,367.16/x
  3. Step 3: Cross multiply
    54,342.95x = 74,979.09 × 31,367.16
  4. Step 4: Simplify right side
    54,342.95x = 2,351,881,112.68
  5. Step 5: Solve for x
    x = 2,351,881,112.68/54,342.95
  6. Step 6: Final answer
    x = 43,278.49

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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.