Home / 77,146.74-115,725.24-29,784.42

Finding the Fourth Proportional to 77,146.74, 115,725.24 and 29,784.42

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Solution

The fourth proportional to 77,146.74, 115,725.24 and 29,784.42 is: 44,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,146.74 : 115,725.24 = 29,784.42 : x
  2. Step 2: Convert to fraction form
    77,146.74/115,725.24 = 29,784.42/x
  3. Step 3: Cross multiply
    77,146.74x = 115,725.24 × 29,784.42
  4. Step 4: Simplify right side
    77,146.74x = 3,446,809,152.76
  5. Step 5: Solve for x
    x = 3,446,809,152.76/77,146.74
  6. Step 6: Final answer
    x = 44,678.61

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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.