Home / 49,439.68-74,155.20-18,275.20

Finding the Fourth Proportional to 49,439.68, 74,155.20 and 18,275.20

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Solution

The fourth proportional to 49,439.68, 74,155.20 and 18,275.20 is: 27,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,439.68 : 74,155.20 = 18,275.20 : x
  2. Step 2: Convert to fraction form
    49,439.68/74,155.20 = 18,275.20/x
  3. Step 3: Cross multiply
    49,439.68x = 74,155.20 × 18,275.20
  4. Step 4: Simplify right side
    49,439.68x = 1,355,201,111.04
  5. Step 5: Solve for x
    x = 1,355,201,111.04/49,439.68
  6. Step 6: Final answer
    x = 27,411.20

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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.