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Finding the Fourth Proportional to 64,959, 97,436.82 and 17,578.68

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Solution

The fourth proportional to 64,959, 97,436.82 and 17,578.68 is: 26,367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959 : 97,436.82 = 17,578.68 : x
  2. Step 2: Convert to fraction form
    64,959/97,436.82 = 17,578.68/x
  3. Step 3: Cross multiply
    64,959x = 97,436.82 × 17,578.68
  4. Step 4: Simplify right side
    64,959x = 1,712,810,679.00
  5. Step 5: Solve for x
    x = 1,712,810,679.00/64,959
  6. Step 6: Final answer
    x = 26,367.57

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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.