Home / 47,939.88-66,157.36-26,720.50

Finding the Fourth Proportional to 47,939.88, 66,157.36 and 26,720.50

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Solution

The fourth proportional to 47,939.88, 66,157.36 and 26,720.50 is: 36,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,939.88 : 66,157.36 = 26,720.50 : x
  2. Step 2: Convert to fraction form
    47,939.88/66,157.36 = 26,720.50/x
  3. Step 3: Cross multiply
    47,939.88x = 66,157.36 × 26,720.50
  4. Step 4: Simplify right side
    47,939.88x = 1,767,757,737.88
  5. Step 5: Solve for x
    x = 1,767,757,737.88/47,939.88
  6. Step 6: Final answer
    x = 36,874.47

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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.