Home / 86,557.54-129,494.76-65,558.26

Finding the Fourth Proportional to 86,557.54, 129,494.76 and 65,558.26

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Solution

The fourth proportional to 86,557.54, 129,494.76 and 65,558.26 is: 98,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,557.54 : 129,494.76 = 65,558.26 : x
  2. Step 2: Convert to fraction form
    86,557.54/129,494.76 = 65,558.26/x
  3. Step 3: Cross multiply
    86,557.54x = 129,494.76 × 65,558.26
  4. Step 4: Simplify right side
    86,557.54x = 8,489,451,144.72
  5. Step 5: Solve for x
    x = 8,489,451,144.72/86,557.54
  6. Step 6: Final answer
    x = 98,078.70

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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.