Home / 91,318.82-125,938.38-57,330.47

Finding the Fourth Proportional to 91,318.82, 125,938.38 and 57,330.47

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Solution

The fourth proportional to 91,318.82, 125,938.38 and 57,330.47 is: 79,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,318.82 : 125,938.38 = 57,330.47 : x
  2. Step 2: Convert to fraction form
    91,318.82/125,938.38 = 57,330.47/x
  3. Step 3: Cross multiply
    91,318.82x = 125,938.38 × 57,330.47
  4. Step 4: Simplify right side
    91,318.82x = 7,220,106,516.44
  5. Step 5: Solve for x
    x = 7,220,106,516.44/91,318.82
  6. Step 6: Final answer
    x = 79,064.83

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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.