Home / 49,638.02-68,516.43-31,781.12

Finding the Fourth Proportional to 49,638.02, 68,516.43 and 31,781.12

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Solution

The fourth proportional to 49,638.02, 68,516.43 and 31,781.12 is: 43,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,638.02 : 68,516.43 = 31,781.12 : x
  2. Step 2: Convert to fraction form
    49,638.02/68,516.43 = 31,781.12/x
  3. Step 3: Cross multiply
    49,638.02x = 68,516.43 × 31,781.12
  4. Step 4: Simplify right side
    49,638.02x = 2,177,528,883.80
  5. Step 5: Solve for x
    x = 2,177,528,883.80/49,638.02
  6. Step 6: Final answer
    x = 43,868.17

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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.