Home / 85,506.73-128,260.10-23,177.23

Finding the Fourth Proportional to 85,506.73, 128,260.10 and 23,177.23

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Solution

The fourth proportional to 85,506.73, 128,260.10 and 23,177.23 is: 34,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,506.73 : 128,260.10 = 23,177.23 : x
  2. Step 2: Convert to fraction form
    85,506.73/128,260.10 = 23,177.23/x
  3. Step 3: Cross multiply
    85,506.73x = 128,260.10 × 23,177.23
  4. Step 4: Simplify right side
    85,506.73x = 2,972,713,721.64
  5. Step 5: Solve for x
    x = 2,972,713,721.64/85,506.73
  6. Step 6: Final answer
    x = 34,765.85

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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.