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Finding the Fourth Proportional to 64,744.96, 97,100.16 and 18,000.40

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Solution

The fourth proportional to 64,744.96, 97,100.16 and 18,000.40 is: 26,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,744.96 : 97,100.16 = 18,000.40 : x
  2. Step 2: Convert to fraction form
    64,744.96/97,100.16 = 18,000.40/x
  3. Step 3: Cross multiply
    64,744.96x = 97,100.16 × 18,000.40
  4. Step 4: Simplify right side
    64,744.96x = 1,747,841,720.06
  5. Step 5: Solve for x
    x = 1,747,841,720.06/64,744.96
  6. Step 6: Final answer
    x = 26,995.80

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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.