Home / 77,002.24-115,549.44-70,735.36

Finding the Fourth Proportional to 77,002.24, 115,549.44 and 70,735.36

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Solution

The fourth proportional to 77,002.24, 115,549.44 and 70,735.36 is: 106,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,002.24 : 115,549.44 = 70,735.36 : x
  2. Step 2: Convert to fraction form
    77,002.24/115,549.44 = 70,735.36/x
  3. Step 3: Cross multiply
    77,002.24x = 115,549.44 × 70,735.36
  4. Step 4: Simplify right side
    77,002.24x = 8,173,431,236.20
  5. Step 5: Solve for x
    x = 8,173,431,236.20/77,002.24
  6. Step 6: Final answer
    x = 106,145.37

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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.