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Finding the Fourth Proportional to 64,859.70, 97,282.35 and 18,117.30

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Solution

The fourth proportional to 64,859.70, 97,282.35 and 18,117.30 is: 27,173.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,859.70 : 97,282.35 = 18,117.30 : x
  2. Step 2: Convert to fraction form
    64,859.70/97,282.35 = 18,117.30/x
  3. Step 3: Cross multiply
    64,859.70x = 97,282.35 × 18,117.30
  4. Step 4: Simplify right side
    64,859.70x = 1,762,493,519.66
  5. Step 5: Solve for x
    x = 1,762,493,519.66/64,859.70
  6. Step 6: Final answer
    x = 27,173.94

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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.