Home / 85,754.08-128,649.60-26,588.56

Finding the Fourth Proportional to 85,754.08, 128,649.60 and 26,588.56

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Solution

The fourth proportional to 85,754.08, 128,649.60 and 26,588.56 is: 39,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,754.08 : 128,649.60 = 26,588.56 : x
  2. Step 2: Convert to fraction form
    85,754.08/128,649.60 = 26,588.56/x
  3. Step 3: Cross multiply
    85,754.08x = 128,649.60 × 26,588.56
  4. Step 4: Simplify right side
    85,754.08x = 3,420,607,608.58
  5. Step 5: Solve for x
    x = 3,420,607,608.58/85,754.08
  6. Step 6: Final answer
    x = 39,888.57

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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.