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Finding the Fourth Proportional to 86,950.88, 130,424.88 and 27,786.16

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Solution

The fourth proportional to 86,950.88, 130,424.88 and 27,786.16 is: 41,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,950.88 : 130,424.88 = 27,786.16 : x
  2. Step 2: Convert to fraction form
    86,950.88/130,424.88 = 27,786.16/x
  3. Step 3: Cross multiply
    86,950.88x = 130,424.88 × 27,786.16
  4. Step 4: Simplify right side
    86,950.88x = 3,624,006,583.66
  5. Step 5: Solve for x
    x = 3,624,006,583.66/86,950.88
  6. Step 6: Final answer
    x = 41,678.78

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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.