Home / 75,999.53-113,981.94-28,619.62

Finding the Fourth Proportional to 75,999.53, 113,981.94 and 28,619.62

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Solution

The fourth proportional to 75,999.53, 113,981.94 and 28,619.62 is: 42,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,999.53 : 113,981.94 = 28,619.62 : x
  2. Step 2: Convert to fraction form
    75,999.53/113,981.94 = 28,619.62/x
  3. Step 3: Cross multiply
    75,999.53x = 113,981.94 × 28,619.62
  4. Step 4: Simplify right side
    75,999.53x = 3,262,119,809.66
  5. Step 5: Solve for x
    x = 3,262,119,809.66/75,999.53
  6. Step 6: Final answer
    x = 42,922.89

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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.