Home / 55,023.30-75,932.91-31,149.45

Finding the Fourth Proportional to 55,023.30, 75,932.91 and 31,149.45

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Solution

The fourth proportional to 55,023.30, 75,932.91 and 31,149.45 is: 42,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,023.30 : 75,932.91 = 31,149.45 : x
  2. Step 2: Convert to fraction form
    55,023.30/75,932.91 = 31,149.45/x
  3. Step 3: Cross multiply
    55,023.30x = 75,932.91 × 31,149.45
  4. Step 4: Simplify right side
    55,023.30x = 2,365,268,383.40
  5. Step 5: Solve for x
    x = 2,365,268,383.40/55,023.30
  6. Step 6: Final answer
    x = 42,986.67

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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.