Home / 54,083.84-74,639.75-31,120.71

Finding the Fourth Proportional to 54,083.84, 74,639.75 and 31,120.71

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Solution

The fourth proportional to 54,083.84, 74,639.75 and 31,120.71 is: 42,948.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,083.84 : 74,639.75 = 31,120.71 : x
  2. Step 2: Convert to fraction form
    54,083.84/74,639.75 = 31,120.71/x
  3. Step 3: Cross multiply
    54,083.84x = 74,639.75 × 31,120.71
  4. Step 4: Simplify right side
    54,083.84x = 2,322,841,578.72
  5. Step 5: Solve for x
    x = 2,322,841,578.72/54,083.84
  6. Step 6: Final answer
    x = 42,948.91

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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.