Home / 55,247.86-82,872.31-30,274.28

Finding the Fourth Proportional to 55,247.86, 82,872.31 and 30,274.28

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Solution

The fourth proportional to 55,247.86, 82,872.31 and 30,274.28 is: 45,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,247.86 : 82,872.31 = 30,274.28 : x
  2. Step 2: Convert to fraction form
    55,247.86/82,872.31 = 30,274.28/x
  3. Step 3: Cross multiply
    55,247.86x = 82,872.31 × 30,274.28
  4. Step 4: Simplify right side
    55,247.86x = 2,508,899,102.83
  5. Step 5: Solve for x
    x = 2,508,899,102.83/55,247.86
  6. Step 6: Final answer
    x = 45,411.70

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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.