Home / 49,470.55-74,187.29-19,878.31

Finding the Fourth Proportional to 49,470.55, 74,187.29 and 19,878.31

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Solution

The fourth proportional to 49,470.55, 74,187.29 and 19,878.31 is: 29,810.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,470.55 : 74,187.29 = 19,878.31 : x
  2. Step 2: Convert to fraction form
    49,470.55/74,187.29 = 19,878.31/x
  3. Step 3: Cross multiply
    49,470.55x = 74,187.29 × 19,878.31
  4. Step 4: Simplify right side
    49,470.55x = 1,474,718,091.11
  5. Step 5: Solve for x
    x = 1,474,718,091.11/49,470.55
  6. Step 6: Final answer
    x = 29,810.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.