Home / 76,927.86-115,325.55-30,169.62

Finding the Fourth Proportional to 76,927.86, 115,325.55 and 30,169.62

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Solution

The fourth proportional to 76,927.86, 115,325.55 and 30,169.62 is: 45,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,927.86 : 115,325.55 = 30,169.62 : x
  2. Step 2: Convert to fraction form
    76,927.86/115,325.55 = 30,169.62/x
  3. Step 3: Cross multiply
    76,927.86x = 115,325.55 × 30,169.62
  4. Step 4: Simplify right side
    76,927.86x = 3,479,328,019.79
  5. Step 5: Solve for x
    x = 3,479,328,019.79/76,927.86
  6. Step 6: Final answer
    x = 45,228.45

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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.