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Finding the Fourth Proportional to 64,891.60, 97,337.40 and 53,956.60

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Solution

The fourth proportional to 64,891.60, 97,337.40 and 53,956.60 is: 80,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,891.60 : 97,337.40 = 53,956.60 : x
  2. Step 2: Convert to fraction form
    64,891.60/97,337.40 = 53,956.60/x
  3. Step 3: Cross multiply
    64,891.60x = 97,337.40 × 53,956.60
  4. Step 4: Simplify right side
    64,891.60x = 5,251,995,156.84
  5. Step 5: Solve for x
    x = 5,251,995,156.84/64,891.60
  6. Step 6: Final answer
    x = 80,934.90

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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.