Home / 69,270.66-95,586.57-42,420.78

Finding the Fourth Proportional to 69,270.66, 95,586.57 and 42,420.78

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Solution

The fourth proportional to 69,270.66, 95,586.57 and 42,420.78 is: 58,536.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,270.66 : 95,586.57 = 42,420.78 : x
  2. Step 2: Convert to fraction form
    69,270.66/95,586.57 = 42,420.78/x
  3. Step 3: Cross multiply
    69,270.66x = 95,586.57 × 42,420.78
  4. Step 4: Simplify right side
    69,270.66x = 4,054,856,856.92
  5. Step 5: Solve for x
    x = 4,054,856,856.92/69,270.66
  6. Step 6: Final answer
    x = 58,536.43

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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.