Home / 77,422.18-116,133.18-21,262.90

Finding the Fourth Proportional to 77,422.18, 116,133.18 and 21,262.90

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Solution

The fourth proportional to 77,422.18, 116,133.18 and 21,262.90 is: 31,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,422.18 : 116,133.18 = 21,262.90 : x
  2. Step 2: Convert to fraction form
    77,422.18/116,133.18 = 21,262.90/x
  3. Step 3: Cross multiply
    77,422.18x = 116,133.18 × 21,262.90
  4. Step 4: Simplify right side
    77,422.18x = 2,469,328,193.02
  5. Step 5: Solve for x
    x = 2,469,328,193.02/77,422.18
  6. Step 6: Final answer
    x = 31,894.33

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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.