Home / 84,012.90-126,042.70-36,632.12

Finding the Fourth Proportional to 84,012.90, 126,042.70 and 36,632.12

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Solution

The fourth proportional to 84,012.90, 126,042.70 and 36,632.12 is: 54,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,012.90 : 126,042.70 = 36,632.12 : x
  2. Step 2: Convert to fraction form
    84,012.90/126,042.70 = 36,632.12/x
  3. Step 3: Cross multiply
    84,012.90x = 126,042.70 × 36,632.12
  4. Step 4: Simplify right side
    84,012.90x = 4,617,211,311.52
  5. Step 5: Solve for x
    x = 4,617,211,311.52/84,012.90
  6. Step 6: Final answer
    x = 54,958.36

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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.