Home / 76,923.40-115,385.10-63,790.60

Finding the Fourth Proportional to 76,923.40, 115,385.10 and 63,790.60

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Solution

The fourth proportional to 76,923.40, 115,385.10 and 63,790.60 is: 95,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,923.40 : 115,385.10 = 63,790.60 : x
  2. Step 2: Convert to fraction form
    76,923.40/115,385.10 = 63,790.60/x
  3. Step 3: Cross multiply
    76,923.40x = 115,385.10 × 63,790.60
  4. Step 4: Simplify right side
    76,923.40x = 7,360,484,760.06
  5. Step 5: Solve for x
    x = 7,360,484,760.06/76,923.40
  6. Step 6: Final answer
    x = 95,685.90

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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.