Home / 78,346.16-117,586.44-31,632.56

Finding the Fourth Proportional to 78,346.16, 117,586.44 and 31,632.56

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Solution

The fourth proportional to 78,346.16, 117,586.44 and 31,632.56 is: 47,475.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,346.16 : 117,586.44 = 31,632.56 : x
  2. Step 2: Convert to fraction form
    78,346.16/117,586.44 = 31,632.56/x
  3. Step 3: Cross multiply
    78,346.16x = 117,586.44 × 31,632.56
  4. Step 4: Simplify right side
    78,346.16x = 3,719,560,118.49
  5. Step 5: Solve for x
    x = 3,719,560,118.49/78,346.16
  6. Step 6: Final answer
    x = 47,475.97

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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.