Home / 53,930.10-80,895.15-52,115.70

Finding the Fourth Proportional to 53,930.10, 80,895.15 and 52,115.70

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Solution

The fourth proportional to 53,930.10, 80,895.15 and 52,115.70 is: 78,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,930.10 : 80,895.15 = 52,115.70 : x
  2. Step 2: Convert to fraction form
    53,930.10/80,895.15 = 52,115.70/x
  3. Step 3: Cross multiply
    53,930.10x = 80,895.15 × 52,115.70
  4. Step 4: Simplify right side
    53,930.10x = 4,215,907,368.86
  5. Step 5: Solve for x
    x = 4,215,907,368.86/53,930.10
  6. Step 6: Final answer
    x = 78,173.55

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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.