Home / 76,542.08-105,631.20-43,008

Finding the Fourth Proportional to 76,542.08, 105,631.20 and 43,008

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Solution

The fourth proportional to 76,542.08, 105,631.20 and 43,008 is: 59,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,542.08 : 105,631.20 = 43,008 : x
  2. Step 2: Convert to fraction form
    76,542.08/105,631.20 = 43,008/x
  3. Step 3: Cross multiply
    76,542.08x = 105,631.20 × 43,008
  4. Step 4: Simplify right side
    76,542.08x = 4,542,986,649.60
  5. Step 5: Solve for x
    x = 4,542,986,649.60/76,542.08
  6. Step 6: Final answer
    x = 59,352.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.