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Finding the Fourth Proportional to 64,947, 89,626.92 and 36,652.08

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Solution

The fourth proportional to 64,947, 89,626.92 and 36,652.08 is: 50,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,947 : 89,626.92 = 36,652.08 : x
  2. Step 2: Convert to fraction form
    64,947/89,626.92 = 36,652.08/x
  3. Step 3: Cross multiply
    64,947x = 89,626.92 × 36,652.08
  4. Step 4: Simplify right side
    64,947x = 3,285,013,041.99
  5. Step 5: Solve for x
    x = 3,285,013,041.99/64,947
  6. Step 6: Final answer
    x = 50,579.90

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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.