Home / 71,389.15-107,056.04-38,091.05

Finding the Fourth Proportional to 71,389.15, 107,056.04 and 38,091.05

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Solution

The fourth proportional to 71,389.15, 107,056.04 and 38,091.05 is: 57,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,389.15 : 107,056.04 = 38,091.05 : x
  2. Step 2: Convert to fraction form
    71,389.15/107,056.04 = 38,091.05/x
  3. Step 3: Cross multiply
    71,389.15x = 107,056.04 × 38,091.05
  4. Step 4: Simplify right side
    71,389.15x = 4,077,876,765.45
  5. Step 5: Solve for x
    x = 4,077,876,765.45/71,389.15
  6. Step 6: Final answer
    x = 57,121.80

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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.