Home / 49,985.10-74,949.30-20,368.26

Finding the Fourth Proportional to 49,985.10, 74,949.30 and 20,368.26

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Solution

The fourth proportional to 49,985.10, 74,949.30 and 20,368.26 is: 30,540.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,985.10 : 74,949.30 = 20,368.26 : x
  2. Step 2: Convert to fraction form
    49,985.10/74,949.30 = 20,368.26/x
  3. Step 3: Cross multiply
    49,985.10x = 74,949.30 × 20,368.26
  4. Step 4: Simplify right side
    49,985.10x = 1,526,586,829.22
  5. Step 5: Solve for x
    x = 1,526,586,829.22/49,985.10
  6. Step 6: Final answer
    x = 30,540.84

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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.