Home / 75,282.34-112,922.94-19,122.61

Finding the Fourth Proportional to 75,282.34, 112,922.94 and 19,122.61

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Solution

The fourth proportional to 75,282.34, 112,922.94 and 19,122.61 is: 28,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,282.34 : 112,922.94 = 19,122.61 : x
  2. Step 2: Convert to fraction form
    75,282.34/112,922.94 = 19,122.61/x
  3. Step 3: Cross multiply
    75,282.34x = 112,922.94 × 19,122.61
  4. Step 4: Simplify right side
    75,282.34x = 2,159,381,341.67
  5. Step 5: Solve for x
    x = 2,159,381,341.67/75,282.34
  6. Step 6: Final answer
    x = 28,683.77

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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.