Home / 77,147.24-115,726-29,784.92

Finding the Fourth Proportional to 77,147.24, 115,726 and 29,784.92

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Solution

The fourth proportional to 77,147.24, 115,726 and 29,784.92 is: 44,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,147.24 : 115,726 = 29,784.92 : x
  2. Step 2: Convert to fraction form
    77,147.24/115,726 = 29,784.92/x
  3. Step 3: Cross multiply
    77,147.24x = 115,726 × 29,784.92
  4. Step 4: Simplify right side
    77,147.24x = 3,446,889,651.92
  5. Step 5: Solve for x
    x = 3,446,889,651.92/77,147.24
  6. Step 6: Final answer
    x = 44,679.36

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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.