Home / 75,528.83-104,234.88-49,991.20

Finding the Fourth Proportional to 75,528.83, 104,234.88 and 49,991.20

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Solution

The fourth proportional to 75,528.83, 104,234.88 and 49,991.20 is: 68,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,528.83 : 104,234.88 = 49,991.20 : x
  2. Step 2: Convert to fraction form
    75,528.83/104,234.88 = 49,991.20/x
  3. Step 3: Cross multiply
    75,528.83x = 104,234.88 × 49,991.20
  4. Step 4: Simplify right side
    75,528.83x = 5,210,826,211.88
  5. Step 5: Solve for x
    x = 5,210,826,211.88/75,528.83
  6. Step 6: Final answer
    x = 68,991.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.