Home / 48,115.18-72,153.62-18,516.56

Finding the Fourth Proportional to 48,115.18, 72,153.62 and 18,516.56

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Solution

The fourth proportional to 48,115.18, 72,153.62 and 18,516.56 is: 27,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,115.18 : 72,153.62 = 18,516.56 : x
  2. Step 2: Convert to fraction form
    48,115.18/72,153.62 = 18,516.56/x
  3. Step 3: Cross multiply
    48,115.18x = 72,153.62 × 18,516.56
  4. Step 4: Simplify right side
    48,115.18x = 1,336,036,833.95
  5. Step 5: Solve for x
    x = 1,336,036,833.95/48,115.18
  6. Step 6: Final answer
    x = 27,767.47

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1.5x scale

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.