Home / 56,109.78-77,765.90-55,060.02

Finding the Fourth Proportional to 56,109.78, 77,765.90 and 55,060.02

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Solution

The fourth proportional to 56,109.78, 77,765.90 and 55,060.02 is: 76,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,109.78 : 77,765.90 = 55,060.02 : x
  2. Step 2: Convert to fraction form
    56,109.78/77,765.90 = 55,060.02/x
  3. Step 3: Cross multiply
    56,109.78x = 77,765.90 × 55,060.02
  4. Step 4: Simplify right side
    56,109.78x = 4,281,791,734.02
  5. Step 5: Solve for x
    x = 4,281,791,734.02/56,109.78
  6. Step 6: Final answer
    x = 76,310.97

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.