Home / 81,115.42-121,673.41-24,955.15

Finding the Fourth Proportional to 81,115.42, 121,673.41 and 24,955.15

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Solution

The fourth proportional to 81,115.42, 121,673.41 and 24,955.15 is: 37,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,115.42 : 121,673.41 = 24,955.15 : x
  2. Step 2: Convert to fraction form
    81,115.42/121,673.41 = 24,955.15/x
  3. Step 3: Cross multiply
    81,115.42x = 121,673.41 × 24,955.15
  4. Step 4: Simplify right side
    81,115.42x = 3,036,378,072.79
  5. Step 5: Solve for x
    x = 3,036,378,072.79/81,115.42
  6. Step 6: Final answer
    x = 37,432.81

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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.