Home / 76,503.18-114,754.66-20,343.32

Finding the Fourth Proportional to 76,503.18, 114,754.66 and 20,343.32

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Solution

The fourth proportional to 76,503.18, 114,754.66 and 20,343.32 is: 30,514.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,503.18 : 114,754.66 = 20,343.32 : x
  2. Step 2: Convert to fraction form
    76,503.18/114,754.66 = 20,343.32/x
  3. Step 3: Cross multiply
    76,503.18x = 114,754.66 × 20,343.32
  4. Step 4: Simplify right side
    76,503.18x = 2,334,490,575.57
  5. Step 5: Solve for x
    x = 2,334,490,575.57/76,503.18
  6. Step 6: Final answer
    x = 30,514.95

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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.