Home / 49,486.60-74,254.20-19,905.40

Finding the Fourth Proportional to 49,486.60, 74,254.20 and 19,905.40

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Solution

The fourth proportional to 49,486.60, 74,254.20 and 19,905.40 is: 29,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,486.60 : 74,254.20 = 19,905.40 : x
  2. Step 2: Convert to fraction form
    49,486.60/74,254.20 = 19,905.40/x
  3. Step 3: Cross multiply
    49,486.60x = 74,254.20 × 19,905.40
  4. Step 4: Simplify right side
    49,486.60x = 1,478,059,552.68
  5. Step 5: Solve for x
    x = 1,478,059,552.68/49,486.60
  6. Step 6: Final answer
    x = 29,867.87

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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.