Home / 87,653.34-131,306.94-57,981.42

Finding the Fourth Proportional to 87,653.34, 131,306.94 and 57,981.42

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Solution

The fourth proportional to 87,653.34, 131,306.94 and 57,981.42 is: 86,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,653.34 : 131,306.94 = 57,981.42 : x
  2. Step 2: Convert to fraction form
    87,653.34/131,306.94 = 57,981.42/x
  3. Step 3: Cross multiply
    87,653.34x = 131,306.94 × 57,981.42
  4. Step 4: Simplify right side
    87,653.34x = 7,613,362,837.05
  5. Step 5: Solve for x
    x = 7,613,362,837.05/87,653.34
  6. Step 6: Final answer
    x = 86,857.65

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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.