Home / 76,530.60-105,633.05-49,671.54

Finding the Fourth Proportional to 76,530.60, 105,633.05 and 49,671.54

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Solution

The fourth proportional to 76,530.60, 105,633.05 and 49,671.54 is: 68,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,530.60 : 105,633.05 = 49,671.54 : x
  2. Step 2: Convert to fraction form
    76,530.60/105,633.05 = 49,671.54/x
  3. Step 3: Cross multiply
    76,530.60x = 105,633.05 × 49,671.54
  4. Step 4: Simplify right side
    76,530.60x = 5,246,955,864.41
  5. Step 5: Solve for x
    x = 5,246,955,864.41/76,530.60
  6. Step 6: Final answer
    x = 68,560.24

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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.