Home / 86,272.52-129,408.77-39,525.39

Finding the Fourth Proportional to 86,272.52, 129,408.77 and 39,525.39

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Solution

The fourth proportional to 86,272.52, 129,408.77 and 39,525.39 is: 59,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,272.52 : 129,408.77 = 39,525.39 : x
  2. Step 2: Convert to fraction form
    86,272.52/129,408.77 = 39,525.39/x
  3. Step 3: Cross multiply
    86,272.52x = 129,408.77 × 39,525.39
  4. Step 4: Simplify right side
    86,272.52x = 5,114,932,202.48
  5. Step 5: Solve for x
    x = 5,114,932,202.48/86,272.52
  6. Step 6: Final answer
    x = 59,288.09

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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.