Home / 88,142.88-121,637.32-47,856.64

Finding the Fourth Proportional to 88,142.88, 121,637.32 and 47,856.64

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Solution

The fourth proportional to 88,142.88, 121,637.32 and 47,856.64 is: 66,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,142.88 : 121,637.32 = 47,856.64 : x
  2. Step 2: Convert to fraction form
    88,142.88/121,637.32 = 47,856.64/x
  3. Step 3: Cross multiply
    88,142.88x = 121,637.32 × 47,856.64
  4. Step 4: Simplify right side
    88,142.88x = 5,821,153,433.80
  5. Step 5: Solve for x
    x = 5,821,153,433.80/88,142.88
  6. Step 6: Final answer
    x = 66,042.24

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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.