Home / 54,280.71-74,907.41-30,407.90

Finding the Fourth Proportional to 54,280.71, 74,907.41 and 30,407.90

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Solution

The fourth proportional to 54,280.71, 74,907.41 and 30,407.90 is: 41,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,280.71 : 74,907.41 = 30,407.90 : x
  2. Step 2: Convert to fraction form
    54,280.71/74,907.41 = 30,407.90/x
  3. Step 3: Cross multiply
    54,280.71x = 74,907.41 × 30,407.90
  4. Step 4: Simplify right side
    54,280.71x = 2,277,776,505.96
  5. Step 5: Solve for x
    x = 2,277,776,505.96/54,280.71
  6. Step 6: Final answer
    x = 41,962.91

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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.