Home / 49,871.83-74,742.80-20,255.06

Finding the Fourth Proportional to 49,871.83, 74,742.80 and 20,255.06

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Solution

The fourth proportional to 49,871.83, 74,742.80 and 20,255.06 is: 30,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,871.83 : 74,742.80 = 20,255.06 : x
  2. Step 2: Convert to fraction form
    49,871.83/74,742.80 = 20,255.06/x
  3. Step 3: Cross multiply
    49,871.83x = 74,742.80 × 20,255.06
  4. Step 4: Simplify right side
    49,871.83x = 1,513,920,098.08
  5. Step 5: Solve for x
    x = 1,513,920,098.08/49,871.83
  6. Step 6: Final answer
    x = 30,356.22

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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.