Home / 92,406.20-138,609.30-50,415.80

Finding the Fourth Proportional to 92,406.20, 138,609.30 and 50,415.80

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Solution

The fourth proportional to 92,406.20, 138,609.30 and 50,415.80 is: 75,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,406.20 : 138,609.30 = 50,415.80 : x
  2. Step 2: Convert to fraction form
    92,406.20/138,609.30 = 50,415.80/x
  3. Step 3: Cross multiply
    92,406.20x = 138,609.30 × 50,415.80
  4. Step 4: Simplify right side
    92,406.20x = 6,988,098,746.94
  5. Step 5: Solve for x
    x = 6,988,098,746.94/92,406.20
  6. Step 6: Final answer
    x = 75,623.70

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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.