Home / 79,739.01-119,613.78-26,430.75

Finding the Fourth Proportional to 79,739.01, 119,613.78 and 26,430.75

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Solution

The fourth proportional to 79,739.01, 119,613.78 and 26,430.75 is: 39,647.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,739.01 : 119,613.78 = 26,430.75 : x
  2. Step 2: Convert to fraction form
    79,739.01/119,613.78 = 26,430.75/x
  3. Step 3: Cross multiply
    79,739.01x = 119,613.78 × 26,430.75
  4. Step 4: Simplify right side
    79,739.01x = 3,161,481,915.74
  5. Step 5: Solve for x
    x = 3,161,481,915.74/79,739.01
  6. Step 6: Final answer
    x = 39,647.87

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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.