Home / 76,140.57-114,171.42-40,592.34

Finding the Fourth Proportional to 76,140.57, 114,171.42 and 40,592.34

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Solution

The fourth proportional to 76,140.57, 114,171.42 and 40,592.34 is: 60,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,140.57 : 114,171.42 = 40,592.34 : x
  2. Step 2: Convert to fraction form
    76,140.57/114,171.42 = 40,592.34/x
  3. Step 3: Cross multiply
    76,140.57x = 114,171.42 × 40,592.34
  4. Step 4: Simplify right side
    76,140.57x = 4,634,484,325.10
  5. Step 5: Solve for x
    x = 4,634,484,325.10/76,140.57
  6. Step 6: Final answer
    x = 60,867.48

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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.