Home / 84,147.69-126,184.41-31,520.25

Finding the Fourth Proportional to 84,147.69, 126,184.41 and 31,520.25

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Solution

The fourth proportional to 84,147.69, 126,184.41 and 31,520.25 is: 47,266.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,147.69 : 126,184.41 = 31,520.25 : x
  2. Step 2: Convert to fraction form
    84,147.69/126,184.41 = 31,520.25/x
  3. Step 3: Cross multiply
    84,147.69x = 126,184.41 × 31,520.25
  4. Step 4: Simplify right side
    84,147.69x = 3,977,364,149.30
  5. Step 5: Solve for x
    x = 3,977,364,149.30/84,147.69
  6. Step 6: Final answer
    x = 47,266.47

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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.