Home / 85,610.24-128,365.76-26,429.76

Finding the Fourth Proportional to 85,610.24, 128,365.76 and 26,429.76

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Solution

The fourth proportional to 85,610.24, 128,365.76 and 26,429.76 is: 39,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,610.24 : 128,365.76 = 26,429.76 : x
  2. Step 2: Convert to fraction form
    85,610.24/128,365.76 = 26,429.76/x
  3. Step 3: Cross multiply
    85,610.24x = 128,365.76 × 26,429.76
  4. Step 4: Simplify right side
    85,610.24x = 3,392,676,229.02
  5. Step 5: Solve for x
    x = 3,392,676,229.02/85,610.24
  6. Step 6: Final answer
    x = 39,629.33

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1.5x scale

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.