Home / 49,869.07-68,821.95-28,649.70

Finding the Fourth Proportional to 49,869.07, 68,821.95 and 28,649.70

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Solution

The fourth proportional to 49,869.07, 68,821.95 and 28,649.70 is: 39,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,869.07 : 68,821.95 = 28,649.70 : x
  2. Step 2: Convert to fraction form
    49,869.07/68,821.95 = 28,649.70/x
  3. Step 3: Cross multiply
    49,869.07x = 68,821.95 × 28,649.70
  4. Step 4: Simplify right side
    49,869.07x = 1,971,728,220.92
  5. Step 5: Solve for x
    x = 1,971,728,220.92/49,869.07
  6. Step 6: Final answer
    x = 39,538.10

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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.