Home / 77,444.18-115,872.81-45,871.18

Finding the Fourth Proportional to 77,444.18, 115,872.81 and 45,871.18

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Solution

The fourth proportional to 77,444.18, 115,872.81 and 45,871.18 is: 68,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,444.18 : 115,872.81 = 45,871.18 : x
  2. Step 2: Convert to fraction form
    77,444.18/115,872.81 = 45,871.18/x
  3. Step 3: Cross multiply
    77,444.18x = 115,872.81 × 45,871.18
  4. Step 4: Simplify right side
    77,444.18x = 5,315,222,524.62
  5. Step 5: Solve for x
    x = 5,315,222,524.62/77,444.18
  6. Step 6: Final answer
    x = 68,632.95

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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.