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Finding the Fourth Proportional to 43,699.52, 65,550 and 12,534.78

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Solution

The fourth proportional to 43,699.52, 65,550 and 12,534.78 is: 18,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,699.52 : 65,550 = 12,534.78 : x
  2. Step 2: Convert to fraction form
    43,699.52/65,550 = 12,534.78/x
  3. Step 3: Cross multiply
    43,699.52x = 65,550 × 12,534.78
  4. Step 4: Simplify right side
    43,699.52x = 821,654,829
  5. Step 5: Solve for x
    x = 821,654,829/43,699.52
  6. Step 6: Final answer
    x = 18,802.38

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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.