Home / 91,718.71-126,518.19-57,673.30

Finding the Fourth Proportional to 91,718.71, 126,518.19 and 57,673.30

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Solution

The fourth proportional to 91,718.71, 126,518.19 and 57,673.30 is: 79,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,718.71 : 126,518.19 = 57,673.30 : x
  2. Step 2: Convert to fraction form
    91,718.71/126,518.19 = 57,673.30/x
  3. Step 3: Cross multiply
    91,718.71x = 126,518.19 × 57,673.30
  4. Step 4: Simplify right side
    91,718.71x = 7,296,721,527.33
  5. Step 5: Solve for x
    x = 7,296,721,527.33/91,718.71
  6. Step 6: Final answer
    x = 79,555.43

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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.