Home / 51,450.71-77,168.09-19,856.16

Finding the Fourth Proportional to 51,450.71, 77,168.09 and 19,856.16

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Solution

The fourth proportional to 51,450.71, 77,168.09 and 19,856.16 is: 29,781.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,450.71 : 77,168.09 = 19,856.16 : x
  2. Step 2: Convert to fraction form
    51,450.71/77,168.09 = 19,856.16/x
  3. Step 3: Cross multiply
    51,450.71x = 77,168.09 × 19,856.16
  4. Step 4: Simplify right side
    51,450.71x = 1,532,261,991.57
  5. Step 5: Solve for x
    x = 1,532,261,991.57/51,450.71
  6. Step 6: Final answer
    x = 29,781.17

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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.