Home / 91,756.80-126,628.92-51,468.48

Finding the Fourth Proportional to 91,756.80, 126,628.92 and 51,468.48

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Solution

The fourth proportional to 91,756.80, 126,628.92 and 51,468.48 is: 71,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,756.80 : 126,628.92 = 51,468.48 : x
  2. Step 2: Convert to fraction form
    91,756.80/126,628.92 = 51,468.48/x
  3. Step 3: Cross multiply
    91,756.80x = 126,628.92 × 51,468.48
  4. Step 4: Simplify right side
    91,756.80x = 6,517,398,036.44
  5. Step 5: Solve for x
    x = 6,517,398,036.44/91,756.80
  6. Step 6: Final answer
    x = 71,029.05

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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.