Home / 49,590.21-74,385.32-12,654.21

Finding the Fourth Proportional to 49,590.21, 74,385.32 and 12,654.21

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Solution

The fourth proportional to 49,590.21, 74,385.32 and 12,654.21 is: 18,981.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,590.21 : 74,385.32 = 12,654.21 : x
  2. Step 2: Convert to fraction form
    49,590.21/74,385.32 = 12,654.21/x
  3. Step 3: Cross multiply
    49,590.21x = 74,385.32 × 12,654.21
  4. Step 4: Simplify right side
    49,590.21x = 941,287,396.93
  5. Step 5: Solve for x
    x = 941,287,396.93/49,590.21
  6. Step 6: Final answer
    x = 18,981.32

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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.