Home / 77,728.92-116,580.33-21,574.73

Finding the Fourth Proportional to 77,728.92, 116,580.33 and 21,574.73

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Solution

The fourth proportional to 77,728.92, 116,580.33 and 21,574.73 is: 32,358.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,728.92 : 116,580.33 = 21,574.73 : x
  2. Step 2: Convert to fraction form
    77,728.92/116,580.33 = 21,574.73/x
  3. Step 3: Cross multiply
    77,728.92x = 116,580.33 × 21,574.73
  4. Step 4: Simplify right side
    77,728.92x = 2,515,189,143.06
  5. Step 5: Solve for x
    x = 2,515,189,143.06/77,728.92
  6. Step 6: Final answer
    x = 32,358.47

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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.