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Finding the Fourth Proportional to 86,563.62, 119,459.81 and 54,299.61

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Solution

The fourth proportional to 86,563.62, 119,459.81 and 54,299.61 is: 74,934.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,563.62 : 119,459.81 = 54,299.61 : x
  2. Step 2: Convert to fraction form
    86,563.62/119,459.81 = 54,299.61/x
  3. Step 3: Cross multiply
    86,563.62x = 119,459.81 × 54,299.61
  4. Step 4: Simplify right side
    86,563.62x = 6,486,621,093.67
  5. Step 5: Solve for x
    x = 6,486,621,093.67/86,563.62
  6. Step 6: Final answer
    x = 74,934.73

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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.