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Finding the Fourth Proportional to 64,763.26, 89,372.88 and 36,478.06

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Solution

The fourth proportional to 64,763.26, 89,372.88 and 36,478.06 is: 50,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,763.26 : 89,372.88 = 36,478.06 : x
  2. Step 2: Convert to fraction form
    64,763.26/89,372.88 = 36,478.06/x
  3. Step 3: Cross multiply
    64,763.26x = 89,372.88 × 36,478.06
  4. Step 4: Simplify right side
    64,763.26x = 3,260,149,279.01
  5. Step 5: Solve for x
    x = 3,260,149,279.01/64,763.26
  6. Step 6: Final answer
    x = 50,339.49

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1.5x scale

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.