Home / 49,965.13-68,955.81-28,455.78

Finding the Fourth Proportional to 49,965.13, 68,955.81 and 28,455.78

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Solution

The fourth proportional to 49,965.13, 68,955.81 and 28,455.78 is: 39,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,965.13 : 68,955.81 = 28,455.78 : x
  2. Step 2: Convert to fraction form
    49,965.13/68,955.81 = 28,455.78/x
  3. Step 3: Cross multiply
    49,965.13x = 68,955.81 × 28,455.78
  4. Step 4: Simplify right side
    49,965.13x = 1,962,191,359.08
  5. Step 5: Solve for x
    x = 1,962,191,359.08/49,965.13
  6. Step 6: Final answer
    x = 39,271.21

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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.