Home / 77,389.19-116,083.94-21,230.07

Finding the Fourth Proportional to 77,389.19, 116,083.94 and 21,230.07

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Solution

The fourth proportional to 77,389.19, 116,083.94 and 21,230.07 is: 31,845.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,389.19 : 116,083.94 = 21,230.07 : x
  2. Step 2: Convert to fraction form
    77,389.19/116,083.94 = 21,230.07/x
  3. Step 3: Cross multiply
    77,389.19x = 116,083.94 × 21,230.07
  4. Step 4: Simplify right side
    77,389.19x = 2,464,469,630.61
  5. Step 5: Solve for x
    x = 2,464,469,630.61/77,389.19
  6. Step 6: Final answer
    x = 31,845.14

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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.