Home / 49,785.08-68,708.40-28,571

Finding the Fourth Proportional to 49,785.08, 68,708.40 and 28,571

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Solution

The fourth proportional to 49,785.08, 68,708.40 and 28,571 is: 39,430.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,785.08 : 68,708.40 = 28,571 : x
  2. Step 2: Convert to fraction form
    49,785.08/68,708.40 = 28,571/x
  3. Step 3: Cross multiply
    49,785.08x = 68,708.40 × 28,571
  4. Step 4: Simplify right side
    49,785.08x = 1,963,067,696.40
  5. Step 5: Solve for x
    x = 1,963,067,696.40/49,785.08
  6. Step 6: Final answer
    x = 39,430.84

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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.