Home / 47,301.58-70,872.08-28,542.20

Finding the Fourth Proportional to 47,301.58, 70,872.08 and 28,542.20

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Solution

The fourth proportional to 47,301.58, 70,872.08 and 28,542.20 is: 42,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,301.58 : 70,872.08 = 28,542.20 : x
  2. Step 2: Convert to fraction form
    47,301.58/70,872.08 = 28,542.20/x
  3. Step 3: Cross multiply
    47,301.58x = 70,872.08 × 28,542.20
  4. Step 4: Simplify right side
    47,301.58x = 2,022,844,824.17
  5. Step 5: Solve for x
    x = 2,022,844,824.17/47,301.58
  6. Step 6: Final answer
    x = 42,764.85

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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.