Home / 74,963.96-103,450-40,972.44

Finding the Fourth Proportional to 74,963.96, 103,450 and 40,972.44

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Solution

The fourth proportional to 74,963.96, 103,450 and 40,972.44 is: 56,541.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,963.96 : 103,450 = 40,972.44 : x
  2. Step 2: Convert to fraction form
    74,963.96/103,450 = 40,972.44/x
  3. Step 3: Cross multiply
    74,963.96x = 103,450 × 40,972.44
  4. Step 4: Simplify right side
    74,963.96x = 4,238,598,918.00
  5. Step 5: Solve for x
    x = 4,238,598,918.00/74,963.96
  6. Step 6: Final answer
    x = 56,541.82

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1.5x scale

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.