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Finding the Fourth Proportional to 77,993.75, 116,990.63 and 25,403.23

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Solution

The fourth proportional to 77,993.75, 116,990.63 and 25,403.23 is: 38,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,993.75 : 116,990.63 = 25,403.23 : x
  2. Step 2: Convert to fraction form
    77,993.75/116,990.63 = 25,403.23/x
  3. Step 3: Cross multiply
    77,993.75x = 116,990.63 × 25,403.23
  4. Step 4: Simplify right side
    77,993.75x = 2,971,939,996.22
  5. Step 5: Solve for x
    x = 2,971,939,996.22/77,993.75
  6. Step 6: Final answer
    x = 38,104.85

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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.