Home / 49,389.12-74,112.64-18,246.08

Finding the Fourth Proportional to 49,389.12, 74,112.64 and 18,246.08

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Solution

The fourth proportional to 49,389.12, 74,112.64 and 18,246.08 is: 27,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,389.12 : 74,112.64 = 18,246.08 : x
  2. Step 2: Convert to fraction form
    49,389.12/74,112.64 = 18,246.08/x
  3. Step 3: Cross multiply
    49,389.12x = 74,112.64 × 18,246.08
  4. Step 4: Simplify right side
    49,389.12x = 1,352,265,158.45
  5. Step 5: Solve for x
    x = 1,352,265,158.45/49,389.12
  6. Step 6: Final answer
    x = 27,379.82

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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.