Home / 85,801.56-128,705.76-26,635.92

Finding the Fourth Proportional to 85,801.56, 128,705.76 and 26,635.92

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Solution

The fourth proportional to 85,801.56, 128,705.76 and 26,635.92 is: 39,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,801.56 : 128,705.76 = 26,635.92 : x
  2. Step 2: Convert to fraction form
    85,801.56/128,705.76 = 26,635.92/x
  3. Step 3: Cross multiply
    85,801.56x = 128,705.76 × 26,635.92
  4. Step 4: Simplify right side
    85,801.56x = 3,428,196,326.90
  5. Step 5: Solve for x
    x = 3,428,196,326.90/85,801.56
  6. Step 6: Final answer
    x = 39,954.94

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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.