Home / 91,394.55-126,123.61-51,107.85

Finding the Fourth Proportional to 91,394.55, 126,123.61 and 51,107.85

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Solution

The fourth proportional to 91,394.55, 126,123.61 and 51,107.85 is: 70,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,394.55 : 126,123.61 = 51,107.85 : x
  2. Step 2: Convert to fraction form
    91,394.55/126,123.61 = 51,107.85/x
  3. Step 3: Cross multiply
    91,394.55x = 126,123.61 × 51,107.85
  4. Step 4: Simplify right side
    91,394.55x = 6,445,906,541.34
  5. Step 5: Solve for x
    x = 6,445,906,541.34/91,394.55
  6. Step 6: Final answer
    x = 70,528.35

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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.