Home / 49,845.72-74,746.70-18,659.10

Finding the Fourth Proportional to 49,845.72, 74,746.70 and 18,659.10

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Solution

The fourth proportional to 49,845.72, 74,746.70 and 18,659.10 is: 27,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,845.72 : 74,746.70 = 18,659.10 : x
  2. Step 2: Convert to fraction form
    49,845.72/74,746.70 = 18,659.10/x
  3. Step 3: Cross multiply
    49,845.72x = 74,746.70 × 18,659.10
  4. Step 4: Simplify right side
    49,845.72x = 1,394,705,776.24
  5. Step 5: Solve for x
    x = 1,394,705,776.24/49,845.72
  6. Step 6: Final answer
    x = 27,980.45

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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.