Home / 70,669.51-106,002.75-20,748.49

Finding the Fourth Proportional to 70,669.51, 106,002.75 and 20,748.49

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Solution

The fourth proportional to 70,669.51, 106,002.75 and 20,748.49 is: 31,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,669.51 : 106,002.75 = 20,748.49 : x
  2. Step 2: Convert to fraction form
    70,669.51/106,002.75 = 20,748.49/x
  3. Step 3: Cross multiply
    70,669.51x = 106,002.75 × 20,748.49
  4. Step 4: Simplify right side
    70,669.51x = 2,199,396,998.35
  5. Step 5: Solve for x
    x = 2,199,396,998.35/70,669.51
  6. Step 6: Final answer
    x = 31,122.29

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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.