Home / 86,972.71-120,020.78-48,732.10

Finding the Fourth Proportional to 86,972.71, 120,020.78 and 48,732.10

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Solution

The fourth proportional to 86,972.71, 120,020.78 and 48,732.10 is: 67,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,972.71 : 120,020.78 = 48,732.10 : x
  2. Step 2: Convert to fraction form
    86,972.71/120,020.78 = 48,732.10/x
  3. Step 3: Cross multiply
    86,972.71x = 120,020.78 × 48,732.10
  4. Step 4: Simplify right side
    86,972.71x = 5,848,864,653.04
  5. Step 5: Solve for x
    x = 5,848,864,653.04/86,972.71
  6. Step 6: Final answer
    x = 67,249.43

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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.