Home / 67,878.84-93,677.24-39,199.72

Finding the Fourth Proportional to 67,878.84, 93,677.24 and 39,199.72

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Solution

The fourth proportional to 67,878.84, 93,677.24 and 39,199.72 is: 54,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,878.84 : 93,677.24 = 39,199.72 : x
  2. Step 2: Convert to fraction form
    67,878.84/93,677.24 = 39,199.72/x
  3. Step 3: Cross multiply
    67,878.84x = 93,677.24 × 39,199.72
  4. Step 4: Simplify right side
    67,878.84x = 3,672,121,578.37
  5. Step 5: Solve for x
    x = 3,672,121,578.37/67,878.84
  6. Step 6: Final answer
    x = 54,098.18

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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.