Home / 75,047.04-112,504.32-28,267.20

Finding the Fourth Proportional to 75,047.04, 112,504.32 and 28,267.20

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Solution

The fourth proportional to 75,047.04, 112,504.32 and 28,267.20 is: 42,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,047.04 : 112,504.32 = 28,267.20 : x
  2. Step 2: Convert to fraction form
    75,047.04/112,504.32 = 28,267.20/x
  3. Step 3: Cross multiply
    75,047.04x = 112,504.32 × 28,267.20
  4. Step 4: Simplify right side
    75,047.04x = 3,180,182,114.30
  5. Step 5: Solve for x
    x = 3,180,182,114.30/75,047.04
  6. Step 6: Final answer
    x = 42,375.85

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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.