Home / 51,420.83-70,997.51-40,102.97

Finding the Fourth Proportional to 51,420.83, 70,997.51 and 40,102.97

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Solution

The fourth proportional to 51,420.83, 70,997.51 and 40,102.97 is: 55,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,420.83 : 70,997.51 = 40,102.97 : x
  2. Step 2: Convert to fraction form
    51,420.83/70,997.51 = 40,102.97/x
  3. Step 3: Cross multiply
    51,420.83x = 70,997.51 × 40,102.97
  4. Step 4: Simplify right side
    51,420.83x = 2,847,210,758.87
  5. Step 5: Solve for x
    x = 2,847,210,758.87/51,420.83
  6. Step 6: Final answer
    x = 55,370.77

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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.