Home / 49,590.50-74,385.76-12,654.50

Finding the Fourth Proportional to 49,590.50, 74,385.76 and 12,654.50

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Solution

The fourth proportional to 49,590.50, 74,385.76 and 12,654.50 is: 18,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,590.50 : 74,385.76 = 12,654.50 : x
  2. Step 2: Convert to fraction form
    49,590.50/74,385.76 = 12,654.50/x
  3. Step 3: Cross multiply
    49,590.50x = 74,385.76 × 12,654.50
  4. Step 4: Simplify right side
    49,590.50x = 941,314,599.92
  5. Step 5: Solve for x
    x = 941,314,599.92/49,590.50
  6. Step 6: Final answer
    x = 18,981.75

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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.