Home / 77,687.28-116,533.41-21,522.57

Finding the Fourth Proportional to 77,687.28, 116,533.41 and 21,522.57

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Solution

The fourth proportional to 77,687.28, 116,533.41 and 21,522.57 is: 32,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,687.28 : 116,533.41 = 21,522.57 : x
  2. Step 2: Convert to fraction form
    77,687.28/116,533.41 = 21,522.57/x
  3. Step 3: Cross multiply
    77,687.28x = 116,533.41 × 21,522.57
  4. Step 4: Simplify right side
    77,687.28x = 2,508,098,474.06
  5. Step 5: Solve for x
    x = 2,508,098,474.06/77,687.28
  6. Step 6: Final answer
    x = 32,284.54

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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.