Home / 88,137.37-121,637.10-49,903.66

Finding the Fourth Proportional to 88,137.37, 121,637.10 and 49,903.66

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Solution

The fourth proportional to 88,137.37, 121,637.10 and 49,903.66 is: 68,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,137.37 : 121,637.10 = 49,903.66 : x
  2. Step 2: Convert to fraction form
    88,137.37/121,637.10 = 49,903.66/x
  3. Step 3: Cross multiply
    88,137.37x = 121,637.10 × 49,903.66
  4. Step 4: Simplify right side
    88,137.37x = 6,070,135,873.60
  5. Step 5: Solve for x
    x = 6,070,135,873.60/88,137.37
  6. Step 6: Final answer
    x = 68,871.31

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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.