Home / 70,748.63-106,086.43-20,822.25

Finding the Fourth Proportional to 70,748.63, 106,086.43 and 20,822.25

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Solution

The fourth proportional to 70,748.63, 106,086.43 and 20,822.25 is: 31,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,748.63 : 106,086.43 = 20,822.25 : x
  2. Step 2: Convert to fraction form
    70,748.63/106,086.43 = 20,822.25/x
  3. Step 3: Cross multiply
    70,748.63x = 106,086.43 × 20,822.25
  4. Step 4: Simplify right side
    70,748.63x = 2,208,958,167.07
  5. Step 5: Solve for x
    x = 2,208,958,167.07/70,748.63
  6. Step 6: Final answer
    x = 31,222.63

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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.