Home / 87,039.50-120,114.66-49,316.30

Finding the Fourth Proportional to 87,039.50, 120,114.66 and 49,316.30

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Solution

The fourth proportional to 87,039.50, 120,114.66 and 49,316.30 is: 68,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,039.50 : 120,114.66 = 49,316.30 : x
  2. Step 2: Convert to fraction form
    87,039.50/120,114.66 = 49,316.30/x
  3. Step 3: Cross multiply
    87,039.50x = 120,114.66 × 49,316.30
  4. Step 4: Simplify right side
    87,039.50x = 5,923,610,606.96
  5. Step 5: Solve for x
    x = 5,923,610,606.96/87,039.50
  6. Step 6: Final answer
    x = 68,056.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.