Home / 76,616.96-115,021.11-51,767.17

Finding the Fourth Proportional to 76,616.96, 115,021.11 and 51,767.17

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Solution

The fourth proportional to 76,616.96, 115,021.11 and 51,767.17 is: 77,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,616.96 : 115,021.11 = 51,767.17 : x
  2. Step 2: Convert to fraction form
    76,616.96/115,021.11 = 51,767.17/x
  3. Step 3: Cross multiply
    76,616.96x = 115,021.11 × 51,767.17
  4. Step 4: Simplify right side
    76,616.96x = 5,954,317,261.53
  5. Step 5: Solve for x
    x = 5,954,317,261.53/76,616.96
  6. Step 6: Final answer
    x = 77,715.40

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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.