Home / 52,061.34-78,091.32-12,618.81

Finding the Fourth Proportional to 52,061.34, 78,091.32 and 12,618.81

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Solution

The fourth proportional to 52,061.34, 78,091.32 and 12,618.81 is: 18,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,061.34 : 78,091.32 = 12,618.81 : x
  2. Step 2: Convert to fraction form
    52,061.34/78,091.32 = 12,618.81/x
  3. Step 3: Cross multiply
    52,061.34x = 78,091.32 × 12,618.81
  4. Step 4: Simplify right side
    52,061.34x = 985,419,529.73
  5. Step 5: Solve for x
    x = 985,419,529.73/52,061.34
  6. Step 6: Final answer
    x = 18,928.05

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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.