Home / 76,221.24-105,188.46-42,687.48

Finding the Fourth Proportional to 76,221.24, 105,188.46 and 42,687.48

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Solution

The fourth proportional to 76,221.24, 105,188.46 and 42,687.48 is: 58,910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,221.24 : 105,188.46 = 42,687.48 : x
  2. Step 2: Convert to fraction form
    76,221.24/105,188.46 = 42,687.48/x
  3. Step 3: Cross multiply
    76,221.24x = 105,188.46 × 42,687.48
  4. Step 4: Simplify right side
    76,221.24x = 4,490,230,282.48
  5. Step 5: Solve for x
    x = 4,490,230,282.48/76,221.24
  6. Step 6: Final answer
    x = 58,910.49

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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.