Home / 91,610.88-126,394.32-51,319.20

Finding the Fourth Proportional to 91,610.88, 126,394.32 and 51,319.20

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Solution

The fourth proportional to 91,610.88, 126,394.32 and 51,319.20 is: 70,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,610.88 : 126,394.32 = 51,319.20 : x
  2. Step 2: Convert to fraction form
    91,610.88/126,394.32 = 51,319.20/x
  3. Step 3: Cross multiply
    91,610.88x = 126,394.32 × 51,319.20
  4. Step 4: Simplify right side
    91,610.88x = 6,486,455,386.94
  5. Step 5: Solve for x
    x = 6,486,455,386.94/91,610.88
  6. Step 6: Final answer
    x = 70,804.42

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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.