Home / 85,856.23-128,782.97-23,526.73

Finding the Fourth Proportional to 85,856.23, 128,782.97 and 23,526.73

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Solution

The fourth proportional to 85,856.23, 128,782.97 and 23,526.73 is: 35,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,856.23 : 128,782.97 = 23,526.73 : x
  2. Step 2: Convert to fraction form
    85,856.23/128,782.97 = 23,526.73/x
  3. Step 3: Cross multiply
    85,856.23x = 128,782.97 × 23,526.73
  4. Step 4: Simplify right side
    85,856.23x = 3,029,841,402.24
  5. Step 5: Solve for x
    x = 3,029,841,402.24/85,856.23
  6. Step 6: Final answer
    x = 35,289.71

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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.