Home / 55,318.55-76,338.45-30,168.05

Finding the Fourth Proportional to 55,318.55, 76,338.45 and 30,168.05

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Solution

The fourth proportional to 55,318.55, 76,338.45 and 30,168.05 is: 41,631.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,318.55 : 76,338.45 = 30,168.05 : x
  2. Step 2: Convert to fraction form
    55,318.55/76,338.45 = 30,168.05/x
  3. Step 3: Cross multiply
    55,318.55x = 76,338.45 × 30,168.05
  4. Step 4: Simplify right side
    55,318.55x = 2,302,981,794.83
  5. Step 5: Solve for x
    x = 2,302,981,794.83/55,318.55
  6. Step 6: Final answer
    x = 41,631.28

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1.5x scale

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.