Home / 77,223.36-115,812-27,294.24

Finding the Fourth Proportional to 77,223.36, 115,812 and 27,294.24

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Solution

The fourth proportional to 77,223.36, 115,812 and 27,294.24 is: 40,933.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,223.36 : 115,812 = 27,294.24 : x
  2. Step 2: Convert to fraction form
    77,223.36/115,812 = 27,294.24/x
  3. Step 3: Cross multiply
    77,223.36x = 115,812 × 27,294.24
  4. Step 4: Simplify right side
    77,223.36x = 3,161,000,522.88
  5. Step 5: Solve for x
    x = 3,161,000,522.88/77,223.36
  6. Step 6: Final answer
    x = 40,933.22

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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.