Home / 43,040.50-64,564.46-11,875.75

Finding the Fourth Proportional to 43,040.50, 64,564.46 and 11,875.75

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Solution

The fourth proportional to 43,040.50, 64,564.46 and 11,875.75 is: 17,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,040.50 : 64,564.46 = 11,875.75 : x
  2. Step 2: Convert to fraction form
    43,040.50/64,564.46 = 11,875.75/x
  3. Step 3: Cross multiply
    43,040.50x = 64,564.46 × 11,875.75
  4. Step 4: Simplify right side
    43,040.50x = 766,751,385.85
  5. Step 5: Solve for x
    x = 766,751,385.85/43,040.50
  6. Step 6: Final answer
    x = 17,814.65

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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.