Home / 77,137.07-106,454.60-43,148.73

Finding the Fourth Proportional to 77,137.07, 106,454.60 and 43,148.73

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Solution

The fourth proportional to 77,137.07, 106,454.60 and 43,148.73 is: 59,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,137.07 : 106,454.60 = 43,148.73 : x
  2. Step 2: Convert to fraction form
    77,137.07/106,454.60 = 43,148.73/x
  3. Step 3: Cross multiply
    77,137.07x = 106,454.60 × 43,148.73
  4. Step 4: Simplify right side
    77,137.07x = 4,593,380,576.91
  5. Step 5: Solve for x
    x = 4,593,380,576.91/77,137.07
  6. Step 6: Final answer
    x = 59,548.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.