Home / 76,146.36-105,129.68-48,933.48

Finding the Fourth Proportional to 76,146.36, 105,129.68 and 48,933.48

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Solution

The fourth proportional to 76,146.36, 105,129.68 and 48,933.48 is: 67,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,146.36 : 105,129.68 = 48,933.48 : x
  2. Step 2: Convert to fraction form
    76,146.36/105,129.68 = 48,933.48/x
  3. Step 3: Cross multiply
    76,146.36x = 105,129.68 × 48,933.48
  4. Step 4: Simplify right side
    76,146.36x = 5,144,361,093.69
  5. Step 5: Solve for x
    x = 5,144,361,093.69/76,146.36
  6. Step 6: Final answer
    x = 67,558.86

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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.