Home / 74,650.36-103,015.42-40,658.10

Finding the Fourth Proportional to 74,650.36, 103,015.42 and 40,658.10

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Solution

The fourth proportional to 74,650.36, 103,015.42 and 40,658.10 is: 56,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,650.36 : 103,015.42 = 40,658.10 : x
  2. Step 2: Convert to fraction form
    74,650.36/103,015.42 = 40,658.10/x
  3. Step 3: Cross multiply
    74,650.36x = 103,015.42 × 40,658.10
  4. Step 4: Simplify right side
    74,650.36x = 4,188,411,247.90
  5. Step 5: Solve for x
    x = 4,188,411,247.90/74,650.36
  6. Step 6: Final answer
    x = 56,107.05

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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.