Home / 75,203.49-103,777.25-45,005.42

Finding the Fourth Proportional to 75,203.49, 103,777.25 and 45,005.42

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Solution

The fourth proportional to 75,203.49, 103,777.25 and 45,005.42 is: 62,105.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,203.49 : 103,777.25 = 45,005.42 : x
  2. Step 2: Convert to fraction form
    75,203.49/103,777.25 = 45,005.42/x
  3. Step 3: Cross multiply
    75,203.49x = 103,777.25 × 45,005.42
  4. Step 4: Simplify right side
    75,203.49x = 4,670,539,010.27
  5. Step 5: Solve for x
    x = 4,670,539,010.27/75,203.49
  6. Step 6: Final answer
    x = 62,105.35

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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.