Home / 49,585.08-68,439.42-30,711

Finding the Fourth Proportional to 49,585.08, 68,439.42 and 30,711

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Solution

The fourth proportional to 49,585.08, 68,439.42 and 30,711 is: 42,388.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,585.08 : 68,439.42 = 30,711 : x
  2. Step 2: Convert to fraction form
    49,585.08/68,439.42 = 30,711/x
  3. Step 3: Cross multiply
    49,585.08x = 68,439.42 × 30,711
  4. Step 4: Simplify right side
    49,585.08x = 2,101,843,027.62
  5. Step 5: Solve for x
    x = 2,101,843,027.62/49,585.08
  6. Step 6: Final answer
    x = 42,388.62

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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.