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Finding the Fourth Proportional to 47,054.58, 70,590.90 and 18,977.47

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Solution

The fourth proportional to 47,054.58, 70,590.90 and 18,977.47 is: 28,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,054.58 : 70,590.90 = 18,977.47 : x
  2. Step 2: Convert to fraction form
    47,054.58/70,590.90 = 18,977.47/x
  3. Step 3: Cross multiply
    47,054.58x = 70,590.90 × 18,977.47
  4. Step 4: Simplify right side
    47,054.58x = 1,339,636,687.02
  5. Step 5: Solve for x
    x = 1,339,636,687.02/47,054.58
  6. Step 6: Final answer
    x = 28,469.85

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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.