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Finding the Fourth Proportional to 70,806, 106,177.85 and 37,518.40

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Solution

The fourth proportional to 70,806, 106,177.85 and 37,518.40 is: 56,261.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,806 : 106,177.85 = 37,518.40 : x
  2. Step 2: Convert to fraction form
    70,806/106,177.85 = 37,518.40/x
  3. Step 3: Cross multiply
    70,806x = 106,177.85 × 37,518.40
  4. Step 4: Simplify right side
    70,806x = 3,983,623,047.44
  5. Step 5: Solve for x
    x = 3,983,623,047.44/70,806
  6. Step 6: Final answer
    x = 56,261.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.