Home / 74,744.51-111,989.88-45,100.05

Finding the Fourth Proportional to 74,744.51, 111,989.88 and 45,100.05

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Solution

The fourth proportional to 74,744.51, 111,989.88 and 45,100.05 is: 67,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,744.51 : 111,989.88 = 45,100.05 : x
  2. Step 2: Convert to fraction form
    74,744.51/111,989.88 = 45,100.05/x
  3. Step 3: Cross multiply
    74,744.51x = 111,989.88 × 45,100.05
  4. Step 4: Simplify right side
    74,744.51x = 5,050,749,187.49
  5. Step 5: Solve for x
    x = 5,050,749,187.49/74,744.51
  6. Step 6: Final answer
    x = 67,573.52

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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.