Home / 43,445.12-65,177.40-13,864.64

Finding the Fourth Proportional to 43,445.12, 65,177.40 and 13,864.64

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Solution

The fourth proportional to 43,445.12, 65,177.40 and 13,864.64 is: 20,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,445.12 : 65,177.40 = 13,864.64 : x
  2. Step 2: Convert to fraction form
    43,445.12/65,177.40 = 13,864.64/x
  3. Step 3: Cross multiply
    43,445.12x = 65,177.40 × 13,864.64
  4. Step 4: Simplify right side
    43,445.12x = 903,661,187.14
  5. Step 5: Solve for x
    x = 903,661,187.14/43,445.12
  6. Step 6: Final answer
    x = 20,800.06

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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.