Home / 78,074.79-117,113.14-27,475.33

Finding the Fourth Proportional to 78,074.79, 117,113.14 and 27,475.33

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Solution

The fourth proportional to 78,074.79, 117,113.14 and 27,475.33 is: 41,213.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,074.79 : 117,113.14 = 27,475.33 : x
  2. Step 2: Convert to fraction form
    78,074.79/117,113.14 = 27,475.33/x
  3. Step 3: Cross multiply
    78,074.79x = 117,113.14 × 27,475.33
  4. Step 4: Simplify right side
    78,074.79x = 3,217,721,800.60
  5. Step 5: Solve for x
    x = 3,217,721,800.60/78,074.79
  6. Step 6: Final answer
    x = 41,213.33

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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.