Home / 91,703.26-126,555.69-51,429.88

Finding the Fourth Proportional to 91,703.26, 126,555.69 and 51,429.88

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Solution

The fourth proportional to 91,703.26, 126,555.69 and 51,429.88 is: 70,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,703.26 : 126,555.69 = 51,429.88 : x
  2. Step 2: Convert to fraction form
    91,703.26/126,555.69 = 51,429.88/x
  3. Step 3: Cross multiply
    91,703.26x = 126,555.69 × 51,429.88
  4. Step 4: Simplify right side
    91,703.26x = 6,508,743,950.02
  5. Step 5: Solve for x
    x = 6,508,743,950.02/91,703.26
  6. Step 6: Final answer
    x = 70,976.15

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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.