Home / 75,145.90-103,698.14-41,153.78

Finding the Fourth Proportional to 75,145.90, 103,698.14 and 41,153.78

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Solution

The fourth proportional to 75,145.90, 103,698.14 and 41,153.78 is: 56,790.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,145.90 : 103,698.14 = 41,153.78 : x
  2. Step 2: Convert to fraction form
    75,145.90/103,698.14 = 41,153.78/x
  3. Step 3: Cross multiply
    75,145.90x = 103,698.14 × 41,153.78
  4. Step 4: Simplify right side
    75,145.90x = 4,267,570,439.97
  5. Step 5: Solve for x
    x = 4,267,570,439.97/75,145.90
  6. Step 6: Final answer
    x = 56,790.46

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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.