Home / 88,143.66-121,638.24-47,857.23

Finding the Fourth Proportional to 88,143.66, 121,638.24 and 47,857.23

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Solution

The fourth proportional to 88,143.66, 121,638.24 and 47,857.23 is: 66,042.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,143.66 : 121,638.24 = 47,857.23 : x
  2. Step 2: Convert to fraction form
    88,143.66/121,638.24 = 47,857.23/x
  3. Step 3: Cross multiply
    88,143.66x = 121,638.24 × 47,857.23
  4. Step 4: Simplify right side
    88,143.66x = 5,821,269,228.48
  5. Step 5: Solve for x
    x = 5,821,269,228.48/88,143.66
  6. Step 6: Final answer
    x = 66,042.97

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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.