Home / 77,102.96-106,390-44,844.72

Finding the Fourth Proportional to 77,102.96, 106,390 and 44,844.72

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Solution

The fourth proportional to 77,102.96, 106,390 and 44,844.72 is: 61,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,102.96 : 106,390 = 44,844.72 : x
  2. Step 2: Convert to fraction form
    77,102.96/106,390 = 44,844.72/x
  3. Step 3: Cross multiply
    77,102.96x = 106,390 × 44,844.72
  4. Step 4: Simplify right side
    77,102.96x = 4,771,029,760.80
  5. Step 5: Solve for x
    x = 4,771,029,760.80/77,102.96
  6. Step 6: Final answer
    x = 61,878.68

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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.