Home / 49,905.96-68,869.56-28,395.20

Finding the Fourth Proportional to 49,905.96, 68,869.56 and 28,395.20

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Solution

The fourth proportional to 49,905.96, 68,869.56 and 28,395.20 is: 39,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,905.96 : 68,869.56 = 28,395.20 : x
  2. Step 2: Convert to fraction form
    49,905.96/68,869.56 = 28,395.20/x
  3. Step 3: Cross multiply
    49,905.96x = 68,869.56 × 28,395.20
  4. Step 4: Simplify right side
    49,905.96x = 1,955,564,930.11
  5. Step 5: Solve for x
    x = 1,955,564,930.11/49,905.96
  6. Step 6: Final answer
    x = 39,185.00

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1.5x scale

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.