Home / 45,036.54-67,555.62-13,872.06

Finding the Fourth Proportional to 45,036.54, 67,555.62 and 13,872.06

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Solution

The fourth proportional to 45,036.54, 67,555.62 and 13,872.06 is: 20,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,036.54 : 67,555.62 = 13,872.06 : x
  2. Step 2: Convert to fraction form
    45,036.54/67,555.62 = 13,872.06/x
  3. Step 3: Cross multiply
    45,036.54x = 67,555.62 × 13,872.06
  4. Step 4: Simplify right side
    45,036.54x = 937,135,613.98
  5. Step 5: Solve for x
    x = 937,135,613.98/45,036.54
  6. Step 6: Final answer
    x = 20,808.34

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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.