Home / 81,346.65-121,991.39-24,403.58

Finding the Fourth Proportional to 81,346.65, 121,991.39 and 24,403.58

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Solution

The fourth proportional to 81,346.65, 121,991.39 and 24,403.58 is: 36,596.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346.65 : 121,991.39 = 24,403.58 : x
  2. Step 2: Convert to fraction form
    81,346.65/121,991.39 = 24,403.58/x
  3. Step 3: Cross multiply
    81,346.65x = 121,991.39 × 24,403.58
  4. Step 4: Simplify right side
    81,346.65x = 2,977,025,913.20
  5. Step 5: Solve for x
    x = 2,977,025,913.20/81,346.65
  6. Step 6: Final answer
    x = 36,596.79

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1.5x scale

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.