Home / 84,310.77-126,449.92-39,319.72

Finding the Fourth Proportional to 84,310.77, 126,449.92 and 39,319.72

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Solution

The fourth proportional to 84,310.77, 126,449.92 and 39,319.72 is: 58,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,310.77 : 126,449.92 = 39,319.72 : x
  2. Step 2: Convert to fraction form
    84,310.77/126,449.92 = 39,319.72/x
  3. Step 3: Cross multiply
    84,310.77x = 126,449.92 × 39,319.72
  4. Step 4: Simplify right side
    84,310.77x = 4,971,975,448.42
  5. Step 5: Solve for x
    x = 4,971,975,448.42/84,310.77
  6. Step 6: Final answer
    x = 58,972.01

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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.