Home / 91,988.38-126,938.14-51,701.59

Finding the Fourth Proportional to 91,988.38, 126,938.14 and 51,701.59

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Solution

The fourth proportional to 91,988.38, 126,938.14 and 51,701.59 is: 71,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,988.38 : 126,938.14 = 51,701.59 : x
  2. Step 2: Convert to fraction form
    91,988.38/126,938.14 = 51,701.59/x
  3. Step 3: Cross multiply
    91,988.38x = 126,938.14 × 51,701.59
  4. Step 4: Simplify right side
    91,988.38x = 6,562,903,669.64
  5. Step 5: Solve for x
    x = 6,562,903,669.64/91,988.38
  6. Step 6: Final answer
    x = 71,344.92

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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.