Home / 77,428.38-116,141.20-21,268.27

Finding the Fourth Proportional to 77,428.38, 116,141.20 and 21,268.27

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Solution

The fourth proportional to 77,428.38, 116,141.20 and 21,268.27 is: 31,902.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,428.38 : 116,141.20 = 21,268.27 : x
  2. Step 2: Convert to fraction form
    77,428.38/116,141.20 = 21,268.27/x
  3. Step 3: Cross multiply
    77,428.38x = 116,141.20 × 21,268.27
  4. Step 4: Simplify right side
    77,428.38x = 2,470,122,641.27
  5. Step 5: Solve for x
    x = 2,470,122,641.27/77,428.38
  6. Step 6: Final answer
    x = 31,902.03

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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.