Home / 75,905.45-104,752.90-43,650.55

Finding the Fourth Proportional to 75,905.45, 104,752.90 and 43,650.55

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Solution

The fourth proportional to 75,905.45, 104,752.90 and 43,650.55 is: 60,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,905.45 : 104,752.90 = 43,650.55 : x
  2. Step 2: Convert to fraction form
    75,905.45/104,752.90 = 43,650.55/x
  3. Step 3: Cross multiply
    75,905.45x = 104,752.90 × 43,650.55
  4. Step 4: Simplify right side
    75,905.45x = 4,572,521,049.83
  5. Step 5: Solve for x
    x = 4,572,521,049.83/75,905.45
  6. Step 6: Final answer
    x = 60,239.69

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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.