Home / 49,431.08-74,146.62-12,495.08

Finding the Fourth Proportional to 49,431.08, 74,146.62 and 12,495.08

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Solution

The fourth proportional to 49,431.08, 74,146.62 and 12,495.08 is: 18,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,431.08 : 74,146.62 = 12,495.08 : x
  2. Step 2: Convert to fraction form
    49,431.08/74,146.62 = 12,495.08/x
  3. Step 3: Cross multiply
    49,431.08x = 74,146.62 × 12,495.08
  4. Step 4: Simplify right side
    49,431.08x = 926,467,948.63
  5. Step 5: Solve for x
    x = 926,467,948.63/49,431.08
  6. Step 6: Final answer
    x = 18,742.62

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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.