Home / 86,626.62-129,939.94-20,962.62

Finding the Fourth Proportional to 86,626.62, 129,939.94 and 20,962.62

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Solution

The fourth proportional to 86,626.62, 129,939.94 and 20,962.62 is: 31,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,626.62 : 129,939.94 = 20,962.62 : x
  2. Step 2: Convert to fraction form
    86,626.62/129,939.94 = 20,962.62/x
  3. Step 3: Cross multiply
    86,626.62x = 129,939.94 × 20,962.62
  4. Step 4: Simplify right side
    86,626.62x = 2,723,881,585.04
  5. Step 5: Solve for x
    x = 2,723,881,585.04/86,626.62
  6. Step 6: Final answer
    x = 31,443.93

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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.