Home / 75,219.84-103,566.60-57,257.28

Finding the Fourth Proportional to 75,219.84, 103,566.60 and 57,257.28

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Solution

The fourth proportional to 75,219.84, 103,566.60 and 57,257.28 is: 78,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,219.84 : 103,566.60 = 57,257.28 : x
  2. Step 2: Convert to fraction form
    75,219.84/103,566.60 = 57,257.28/x
  3. Step 3: Cross multiply
    75,219.84x = 103,566.60 × 57,257.28
  4. Step 4: Simplify right side
    75,219.84x = 5,929,941,814.85
  5. Step 5: Solve for x
    x = 5,929,941,814.85/75,219.84
  6. Step 6: Final answer
    x = 78,834.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.