Home / 75,315.24-112,972.37-19,154.86

Finding the Fourth Proportional to 75,315.24, 112,972.37 and 19,154.86

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Solution

The fourth proportional to 75,315.24, 112,972.37 and 19,154.86 is: 28,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,315.24 : 112,972.37 = 19,154.86 : x
  2. Step 2: Convert to fraction form
    75,315.24/112,972.37 = 19,154.86/x
  3. Step 3: Cross multiply
    75,315.24x = 112,972.37 × 19,154.86
  4. Step 4: Simplify right side
    75,315.24x = 2,163,969,835.44
  5. Step 5: Solve for x
    x = 2,163,969,835.44/75,315.24
  6. Step 6: Final answer
    x = 28,732.17

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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.