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Finding the Fourth Proportional to 64,693, 97,039.50 and 17,945.88

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Solution

The fourth proportional to 64,693, 97,039.50 and 17,945.88 is: 26,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,693 : 97,039.50 = 17,945.88 : x
  2. Step 2: Convert to fraction form
    64,693/97,039.50 = 17,945.88/x
  3. Step 3: Cross multiply
    64,693x = 97,039.50 × 17,945.88
  4. Step 4: Simplify right side
    64,693x = 1,741,459,222.26
  5. Step 5: Solve for x
    x = 1,741,459,222.26/64,693
  6. Step 6: Final answer
    x = 26,918.82

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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.