Home / 91,820.70-126,712.62-51,538.32

Finding the Fourth Proportional to 91,820.70, 126,712.62 and 51,538.32

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Solution

The fourth proportional to 91,820.70, 126,712.62 and 51,538.32 is: 71,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,820.70 : 126,712.62 = 51,538.32 : x
  2. Step 2: Convert to fraction form
    91,820.70/126,712.62 = 51,538.32/x
  3. Step 3: Cross multiply
    91,820.70x = 126,712.62 × 51,538.32
  4. Step 4: Simplify right side
    91,820.70x = 6,530,555,557.60
  5. Step 5: Solve for x
    x = 6,530,555,557.60/91,820.70
  6. Step 6: Final answer
    x = 71,122.91

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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.