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Finding the Fourth Proportional to 64,963.43, 97,447.88 and 20,589.20

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Solution

The fourth proportional to 64,963.43, 97,447.88 and 20,589.20 is: 30,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,963.43 : 97,447.88 = 20,589.20 : x
  2. Step 2: Convert to fraction form
    64,963.43/97,447.88 = 20,589.20/x
  3. Step 3: Cross multiply
    64,963.43x = 97,447.88 × 20,589.20
  4. Step 4: Simplify right side
    64,963.43x = 2,006,373,300.71
  5. Step 5: Solve for x
    x = 2,006,373,300.71/64,963.43
  6. Step 6: Final answer
    x = 30,884.66

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1.5x scale

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.