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Finding the Fourth Proportional to 86,074.64, 129,065.88 and 36,799.76

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Solution

The fourth proportional to 86,074.64, 129,065.88 and 36,799.76 is: 55,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,074.64 : 129,065.88 = 36,799.76 : x
  2. Step 2: Convert to fraction form
    86,074.64/129,065.88 = 36,799.76/x
  3. Step 3: Cross multiply
    86,074.64x = 129,065.88 × 36,799.76
  4. Step 4: Simplify right side
    86,074.64x = 4,749,593,408.19
  5. Step 5: Solve for x
    x = 4,749,593,408.19/86,074.64
  6. Step 6: Final answer
    x = 55,179.94

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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.