Home / 75,530.72-113,307.24-28,133.84

Finding the Fourth Proportional to 75,530.72, 113,307.24 and 28,133.84

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Solution

The fourth proportional to 75,530.72, 113,307.24 and 28,133.84 is: 42,204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,530.72 : 113,307.24 = 28,133.84 : x
  2. Step 2: Convert to fraction form
    75,530.72/113,307.24 = 28,133.84/x
  3. Step 3: Cross multiply
    75,530.72x = 113,307.24 × 28,133.84
  4. Step 4: Simplify right side
    75,530.72x = 3,187,767,761.00
  5. Step 5: Solve for x
    x = 3,187,767,761.00/75,530.72
  6. Step 6: Final answer
    x = 42,204.92

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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.