Home / 91,713.96-126,511.50-57,668.48

Finding the Fourth Proportional to 91,713.96, 126,511.50 and 57,668.48

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Solution

The fourth proportional to 91,713.96, 126,511.50 and 57,668.48 is: 79,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,713.96 : 126,511.50 = 57,668.48 : x
  2. Step 2: Convert to fraction form
    91,713.96/126,511.50 = 57,668.48/x
  3. Step 3: Cross multiply
    91,713.96x = 126,511.50 × 57,668.48
  4. Step 4: Simplify right side
    91,713.96x = 7,295,725,907.52
  5. Step 5: Solve for x
    x = 7,295,725,907.52/91,713.96
  6. Step 6: Final answer
    x = 79,548.70

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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.