Home / 84,129.72-126,223.38-37,415.16

Finding the Fourth Proportional to 84,129.72, 126,223.38 and 37,415.16

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Solution

The fourth proportional to 84,129.72, 126,223.38 and 37,415.16 is: 56,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,129.72 : 126,223.38 = 37,415.16 : x
  2. Step 2: Convert to fraction form
    84,129.72/126,223.38 = 37,415.16/x
  3. Step 3: Cross multiply
    84,129.72x = 126,223.38 × 37,415.16
  4. Step 4: Simplify right side
    84,129.72x = 4,722,667,958.44
  5. Step 5: Solve for x
    x = 4,722,667,958.44/84,129.72
  6. Step 6: Final answer
    x = 56,135.55

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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.