Home / 91,122.11-125,748.17-50,835.90

Finding the Fourth Proportional to 91,122.11, 125,748.17 and 50,835.90

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Solution

The fourth proportional to 91,122.11, 125,748.17 and 50,835.90 is: 70,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,122.11 : 125,748.17 = 50,835.90 : x
  2. Step 2: Convert to fraction form
    91,122.11/125,748.17 = 50,835.90/x
  3. Step 3: Cross multiply
    91,122.11x = 125,748.17 × 50,835.90
  4. Step 4: Simplify right side
    91,122.11x = 6,392,521,946.29
  5. Step 5: Solve for x
    x = 6,392,521,946.29/91,122.11
  6. Step 6: Final answer
    x = 70,153.35

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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.