Home / 61,168.23-91,730.31-21,176.34

Finding the Fourth Proportional to 61,168.23, 91,730.31 and 21,176.34

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Solution

The fourth proportional to 61,168.23, 91,730.31 and 21,176.34 is: 31,756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,168.23 : 91,730.31 = 21,176.34 : x
  2. Step 2: Convert to fraction form
    61,168.23/91,730.31 = 21,176.34/x
  3. Step 3: Cross multiply
    61,168.23x = 91,730.31 × 21,176.34
  4. Step 4: Simplify right side
    61,168.23x = 1,942,512,232.87
  5. Step 5: Solve for x
    x = 1,942,512,232.87/61,168.23
  6. Step 6: Final answer
    x = 31,756.88

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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.