Home / 49,409.10-68,361.75-43,139.70

Finding the Fourth Proportional to 49,409.10, 68,361.75 and 43,139.70

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Solution

The fourth proportional to 49,409.10, 68,361.75 and 43,139.70 is: 59,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,409.10 : 68,361.75 = 43,139.70 : x
  2. Step 2: Convert to fraction form
    49,409.10/68,361.75 = 43,139.70/x
  3. Step 3: Cross multiply
    49,409.10x = 68,361.75 × 43,139.70
  4. Step 4: Simplify right side
    49,409.10x = 2,949,105,386.48
  5. Step 5: Solve for x
    x = 2,949,105,386.48/49,409.10
  6. Step 6: Final answer
    x = 59,687.49

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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.