Home / 77,155.22-115,742.07-27,225

Finding the Fourth Proportional to 77,155.22, 115,742.07 and 27,225

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Solution

The fourth proportional to 77,155.22, 115,742.07 and 27,225 is: 40,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,155.22 : 115,742.07 = 27,225 : x
  2. Step 2: Convert to fraction form
    77,155.22/115,742.07 = 27,225/x
  3. Step 3: Cross multiply
    77,155.22x = 115,742.07 × 27,225
  4. Step 4: Simplify right side
    77,155.22x = 3,151,077,855.75
  5. Step 5: Solve for x
    x = 3,151,077,855.75/77,155.22
  6. Step 6: Final answer
    x = 40,840.76

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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.