Home / 76,890.40-115,335.60-41,898.40

Finding the Fourth Proportional to 76,890.40, 115,335.60 and 41,898.40

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Solution

The fourth proportional to 76,890.40, 115,335.60 and 41,898.40 is: 62,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,890.40 : 115,335.60 = 41,898.40 : x
  2. Step 2: Convert to fraction form
    76,890.40/115,335.60 = 41,898.40/x
  3. Step 3: Cross multiply
    76,890.40x = 115,335.60 × 41,898.40
  4. Step 4: Simplify right side
    76,890.40x = 4,832,377,103.04
  5. Step 5: Solve for x
    x = 4,832,377,103.04/76,890.40
  6. Step 6: Final answer
    x = 62,847.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.