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Finding the Fourth Proportional to 30,073.56, 45,115.84 and 10,081.08

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Solution

The fourth proportional to 30,073.56, 45,115.84 and 10,081.08 is: 15,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,073.56 : 45,115.84 = 10,081.08 : x
  2. Step 2: Convert to fraction form
    30,073.56/45,115.84 = 10,081.08/x
  3. Step 3: Cross multiply
    30,073.56x = 45,115.84 × 10,081.08
  4. Step 4: Simplify right side
    30,073.56x = 454,816,392.31
  5. Step 5: Solve for x
    x = 454,816,392.31/30,073.56
  6. Step 6: Final answer
    x = 15,123.46

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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.