Home / 55,022.22-75,930.01-31,153.55

Finding the Fourth Proportional to 55,022.22, 75,930.01 and 31,153.55

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Solution

The fourth proportional to 55,022.22, 75,930.01 and 31,153.55 is: 42,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,022.22 : 75,930.01 = 31,153.55 : x
  2. Step 2: Convert to fraction form
    55,022.22/75,930.01 = 31,153.55/x
  3. Step 3: Cross multiply
    55,022.22x = 75,930.01 × 31,153.55
  4. Step 4: Simplify right side
    55,022.22x = 2,365,488,905.50
  5. Step 5: Solve for x
    x = 2,365,488,905.50/55,022.22
  6. Step 6: Final answer
    x = 42,991.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.