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Finding the Fourth Proportional to 77,715.29, 116,560.51 and 27,786.08

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Solution

The fourth proportional to 77,715.29, 116,560.51 and 27,786.08 is: 41,674.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,715.29 : 116,560.51 = 27,786.08 : x
  2. Step 2: Convert to fraction form
    77,715.29/116,560.51 = 27,786.08/x
  3. Step 3: Cross multiply
    77,715.29x = 116,560.51 × 27,786.08
  4. Step 4: Simplify right side
    77,715.29x = 3,238,759,003.43
  5. Step 5: Solve for x
    x = 3,238,759,003.43/77,715.29
  6. Step 6: Final answer
    x = 41,674.67

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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.