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Finding the Fourth Proportional to 43,140, 64,709.92 and 24,659.04

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Solution

The fourth proportional to 43,140, 64,709.92 and 24,659.04 is: 36,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140 : 64,709.92 = 24,659.04 : x
  2. Step 2: Convert to fraction form
    43,140/64,709.92 = 24,659.04/x
  3. Step 3: Cross multiply
    43,140x = 64,709.92 × 24,659.04
  4. Step 4: Simplify right side
    43,140x = 1,595,684,505.68
  5. Step 5: Solve for x
    x = 1,595,684,505.68/43,140
  6. Step 6: Final answer
    x = 36,988.51

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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.