Home / 49,955.77-74,948.64-21,118.06

Finding the Fourth Proportional to 49,955.77, 74,948.64 and 21,118.06

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Solution

The fourth proportional to 49,955.77, 74,948.64 and 21,118.06 is: 31,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,955.77 : 74,948.64 = 21,118.06 : x
  2. Step 2: Convert to fraction form
    49,955.77/74,948.64 = 21,118.06/x
  3. Step 3: Cross multiply
    49,955.77x = 74,948.64 × 21,118.06
  4. Step 4: Simplify right side
    49,955.77x = 1,582,769,876.44
  5. Step 5: Solve for x
    x = 1,582,769,876.44/49,955.77
  6. Step 6: Final answer
    x = 31,683.42

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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.