Home / 47,983.10-66,243.78-31,878.05

Finding the Fourth Proportional to 47,983.10, 66,243.78 and 31,878.05

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Solution

The fourth proportional to 47,983.10, 66,243.78 and 31,878.05 is: 44,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,983.10 : 66,243.78 = 31,878.05 : x
  2. Step 2: Convert to fraction form
    47,983.10/66,243.78 = 31,878.05/x
  3. Step 3: Cross multiply
    47,983.10x = 66,243.78 × 31,878.05
  4. Step 4: Simplify right side
    47,983.10x = 2,111,722,199.81
  5. Step 5: Solve for x
    x = 2,111,722,199.81/47,983.10
  6. Step 6: Final answer
    x = 44,009.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.