Home / 87,651.09-120,962.06-49,412.08

Finding the Fourth Proportional to 87,651.09, 120,962.06 and 49,412.08

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Solution

The fourth proportional to 87,651.09, 120,962.06 and 49,412.08 is: 68,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,651.09 : 120,962.06 = 49,412.08 : x
  2. Step 2: Convert to fraction form
    87,651.09/120,962.06 = 49,412.08/x
  3. Step 3: Cross multiply
    87,651.09x = 120,962.06 × 49,412.08
  4. Step 4: Simplify right side
    87,651.09x = 5,976,986,394.71
  5. Step 5: Solve for x
    x = 5,976,986,394.71/87,651.09
  6. Step 6: Final answer
    x = 68,190.67

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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.