Home / 54,579.42-75,318.78-30,706.12

Finding the Fourth Proportional to 54,579.42, 75,318.78 and 30,706.12

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Solution

The fourth proportional to 54,579.42, 75,318.78 and 30,706.12 is: 42,373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,579.42 : 75,318.78 = 30,706.12 : x
  2. Step 2: Convert to fraction form
    54,579.42/75,318.78 = 30,706.12/x
  3. Step 3: Cross multiply
    54,579.42x = 75,318.78 × 30,706.12
  4. Step 4: Simplify right side
    54,579.42x = 2,312,747,496.93
  5. Step 5: Solve for x
    x = 2,312,747,496.93/54,579.42
  6. Step 6: Final answer
    x = 42,373.98

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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.