Home / 53,729.64-80,626.86-18,693.90

Finding the Fourth Proportional to 53,729.64, 80,626.86 and 18,693.90

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Solution

The fourth proportional to 53,729.64, 80,626.86 and 18,693.90 is: 28,052.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,729.64 : 80,626.86 = 18,693.90 : x
  2. Step 2: Convert to fraction form
    53,729.64/80,626.86 = 18,693.90/x
  3. Step 3: Cross multiply
    53,729.64x = 80,626.86 × 18,693.90
  4. Step 4: Simplify right side
    53,729.64x = 1,507,230,458.15
  5. Step 5: Solve for x
    x = 1,507,230,458.15/53,729.64
  6. Step 6: Final answer
    x = 28,052.12

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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.