Home / 49,380.75-74,071.13-12,444.75

Finding the Fourth Proportional to 49,380.75, 74,071.13 and 12,444.75

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Solution

The fourth proportional to 49,380.75, 74,071.13 and 12,444.75 is: 18,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,380.75 : 74,071.13 = 12,444.75 : x
  2. Step 2: Convert to fraction form
    49,380.75/74,071.13 = 12,444.75/x
  3. Step 3: Cross multiply
    49,380.75x = 74,071.13 × 12,444.75
  4. Step 4: Simplify right side
    49,380.75x = 921,796,632.84
  5. Step 5: Solve for x
    x = 921,796,632.84/49,380.75
  6. Step 6: Final answer
    x = 18,667.13

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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.