Home / 49,661.40-74,492.92-12,221.58

Finding the Fourth Proportional to 49,661.40, 74,492.92 and 12,221.58

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Solution

The fourth proportional to 49,661.40, 74,492.92 and 12,221.58 is: 18,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,661.40 : 74,492.92 = 12,221.58 : x
  2. Step 2: Convert to fraction form
    49,661.40/74,492.92 = 12,221.58/x
  3. Step 3: Cross multiply
    49,661.40x = 74,492.92 × 12,221.58
  4. Step 4: Simplify right side
    49,661.40x = 910,421,181.21
  5. Step 5: Solve for x
    x = 910,421,181.21/49,661.40
  6. Step 6: Final answer
    x = 18,332.57

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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.