Home / 84,175.72-126,277.98-39,823.72

Finding the Fourth Proportional to 84,175.72, 126,277.98 and 39,823.72

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Solution

The fourth proportional to 84,175.72, 126,277.98 and 39,823.72 is: 59,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,175.72 : 126,277.98 = 39,823.72 : x
  2. Step 2: Convert to fraction form
    84,175.72/126,277.98 = 39,823.72/x
  3. Step 3: Cross multiply
    84,175.72x = 126,277.98 × 39,823.72
  4. Step 4: Simplify right side
    84,175.72x = 5,028,858,917.69
  5. Step 5: Solve for x
    x = 5,028,858,917.69/84,175.72
  6. Step 6: Final answer
    x = 59,742.39

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1.5x scale

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.