Home / 49,643.12-74,435.40-20,061.92

Finding the Fourth Proportional to 49,643.12, 74,435.40 and 20,061.92

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Solution

The fourth proportional to 49,643.12, 74,435.40 and 20,061.92 is: 30,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,643.12 : 74,435.40 = 20,061.92 : x
  2. Step 2: Convert to fraction form
    49,643.12/74,435.40 = 20,061.92/x
  3. Step 3: Cross multiply
    49,643.12x = 74,435.40 × 20,061.92
  4. Step 4: Simplify right side
    49,643.12x = 1,493,317,039.97
  5. Step 5: Solve for x
    x = 1,493,317,039.97/49,643.12
  6. Step 6: Final answer
    x = 30,081.05

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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.