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Finding the Fourth Proportional to 43,689, 65,547.42 and 15,608.52

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Solution

The fourth proportional to 43,689, 65,547.42 and 15,608.52 is: 23,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,689 : 65,547.42 = 15,608.52 : x
  2. Step 2: Convert to fraction form
    43,689/65,547.42 = 15,608.52/x
  3. Step 3: Cross multiply
    43,689x = 65,547.42 × 15,608.52
  4. Step 4: Simplify right side
    43,689x = 1,023,098,216.02
  5. Step 5: Solve for x
    x = 1,023,098,216.02/43,689
  6. Step 6: Final answer
    x = 23,417.75

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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.