Home / 75,612.57-113,339.72-28,208.59

Finding the Fourth Proportional to 75,612.57, 113,339.72 and 28,208.59

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Solution

The fourth proportional to 75,612.57, 113,339.72 and 28,208.59 is: 42,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,612.57 : 113,339.72 = 28,208.59 : x
  2. Step 2: Convert to fraction form
    75,612.57/113,339.72 = 28,208.59/x
  3. Step 3: Cross multiply
    75,612.57x = 113,339.72 × 28,208.59
  4. Step 4: Simplify right side
    75,612.57x = 3,197,153,692.19
  5. Step 5: Solve for x
    x = 3,197,153,692.19/75,612.57
  6. Step 6: Final answer
    x = 42,283.36

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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.