Home / 67,146.96-100,582.16-39,378

Finding the Fourth Proportional to 67,146.96, 100,582.16 and 39,378

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Solution

The fourth proportional to 67,146.96, 100,582.16 and 39,378 is: 58,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,146.96 : 100,582.16 = 39,378 : x
  2. Step 2: Convert to fraction form
    67,146.96/100,582.16 = 39,378/x
  3. Step 3: Cross multiply
    67,146.96x = 100,582.16 × 39,378
  4. Step 4: Simplify right side
    67,146.96x = 3,960,724,296.48
  5. Step 5: Solve for x
    x = 3,960,724,296.48/67,146.96
  6. Step 6: Final answer
    x = 58,985.91

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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.