Home / 81,269.40-121,860.26-36,871.93

Finding the Fourth Proportional to 81,269.40, 121,860.26 and 36,871.93

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Solution

The fourth proportional to 81,269.40, 121,860.26 and 36,871.93 is: 55,288.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269.40 : 121,860.26 = 36,871.93 : x
  2. Step 2: Convert to fraction form
    81,269.40/121,860.26 = 36,871.93/x
  3. Step 3: Cross multiply
    81,269.40x = 121,860.26 × 36,871.93
  4. Step 4: Simplify right side
    81,269.40x = 4,493,222,976.50
  5. Step 5: Solve for x
    x = 4,493,222,976.50/81,269.40
  6. Step 6: Final answer
    x = 55,288.00

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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.