Home / 76,309.41-114,372.33-28,239.66

Finding the Fourth Proportional to 76,309.41, 114,372.33 and 28,239.66

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Solution

The fourth proportional to 76,309.41, 114,372.33 and 28,239.66 is: 42,325.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,309.41 : 114,372.33 = 28,239.66 : x
  2. Step 2: Convert to fraction form
    76,309.41/114,372.33 = 28,239.66/x
  3. Step 3: Cross multiply
    76,309.41x = 114,372.33 × 28,239.66
  4. Step 4: Simplify right side
    76,309.41x = 3,229,835,712.61
  5. Step 5: Solve for x
    x = 3,229,835,712.61/76,309.41
  6. Step 6: Final answer
    x = 42,325.52

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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.