Home / 84,137.01-126,134.74-39,135.50

Finding the Fourth Proportional to 84,137.01, 126,134.74 and 39,135.50

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Solution

The fourth proportional to 84,137.01, 126,134.74 and 39,135.50 is: 58,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,137.01 : 126,134.74 = 39,135.50 : x
  2. Step 2: Convert to fraction form
    84,137.01/126,134.74 = 39,135.50/x
  3. Step 3: Cross multiply
    84,137.01x = 126,134.74 × 39,135.50
  4. Step 4: Simplify right side
    84,137.01x = 4,936,345,921.59
  5. Step 5: Solve for x
    x = 4,936,345,921.59/84,137.01
  6. Step 6: Final answer
    x = 58,670.33

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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.