Home / 85,660.96-128,503.91-26,501.24

Finding the Fourth Proportional to 85,660.96, 128,503.91 and 26,501.24

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Solution

The fourth proportional to 85,660.96, 128,503.91 and 26,501.24 is: 39,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,660.96 : 128,503.91 = 26,501.24 : x
  2. Step 2: Convert to fraction form
    85,660.96/128,503.91 = 26,501.24/x
  3. Step 3: Cross multiply
    85,660.96x = 128,503.91 × 26,501.24
  4. Step 4: Simplify right side
    85,660.96x = 3,405,512,618.90
  5. Step 5: Solve for x
    x = 3,405,512,618.90/85,660.96
  6. Step 6: Final answer
    x = 39,755.72

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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.