Home / 85,791.26-128,685.06-23,461.76

Finding the Fourth Proportional to 85,791.26, 128,685.06 and 23,461.76

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Solution

The fourth proportional to 85,791.26, 128,685.06 and 23,461.76 is: 35,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,791.26 : 128,685.06 = 23,461.76 : x
  2. Step 2: Convert to fraction form
    85,791.26/128,685.06 = 23,461.76/x
  3. Step 3: Cross multiply
    85,791.26x = 128,685.06 × 23,461.76
  4. Step 4: Simplify right side
    85,791.26x = 3,019,177,993.31
  5. Step 5: Solve for x
    x = 3,019,177,993.31/85,791.26
  6. Step 6: Final answer
    x = 35,192.14

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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.