Home / 49,905.90-74,887.65-18,744.30

Finding the Fourth Proportional to 49,905.90, 74,887.65 and 18,744.30

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Solution

The fourth proportional to 49,905.90, 74,887.65 and 18,744.30 is: 28,127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,905.90 : 74,887.65 = 18,744.30 : x
  2. Step 2: Convert to fraction form
    49,905.90/74,887.65 = 18,744.30/x
  3. Step 3: Cross multiply
    49,905.90x = 74,887.65 × 18,744.30
  4. Step 4: Simplify right side
    49,905.90x = 1,403,716,577.90
  5. Step 5: Solve for x
    x = 1,403,716,577.90/49,905.90
  6. Step 6: Final answer
    x = 28,127.27

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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.