Home / 76,045.86-114,039.75-30,439.62

Finding the Fourth Proportional to 76,045.86, 114,039.75 and 30,439.62

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Solution

The fourth proportional to 76,045.86, 114,039.75 and 30,439.62 is: 45,647.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,045.86 : 114,039.75 = 30,439.62 : x
  2. Step 2: Convert to fraction form
    76,045.86/114,039.75 = 30,439.62/x
  3. Step 3: Cross multiply
    76,045.86x = 114,039.75 × 30,439.62
  4. Step 4: Simplify right side
    76,045.86x = 3,471,326,654.90
  5. Step 5: Solve for x
    x = 3,471,326,654.90/76,045.86
  6. Step 6: Final answer
    x = 45,647.81

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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.