Home / 76,769.40-114,959.70-56,940.60

Finding the Fourth Proportional to 76,769.40, 114,959.70 and 56,940.60

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Solution

The fourth proportional to 76,769.40, 114,959.70 and 56,940.60 is: 85,266.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,769.40 : 114,959.70 = 56,940.60 : x
  2. Step 2: Convert to fraction form
    76,769.40/114,959.70 = 56,940.60/x
  3. Step 3: Cross multiply
    76,769.40x = 114,959.70 × 56,940.60
  4. Step 4: Simplify right side
    76,769.40x = 6,545,874,293.82
  5. Step 5: Solve for x
    x = 6,545,874,293.82/76,769.40
  6. Step 6: Final answer
    x = 85,266.71

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1.5x scale

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.