Home / 86,405.22-129,625.92-36,485.46

Finding the Fourth Proportional to 86,405.22, 129,625.92 and 36,485.46

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Solution

The fourth proportional to 86,405.22, 129,625.92 and 36,485.46 is: 54,735.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,405.22 : 129,625.92 = 36,485.46 : x
  2. Step 2: Convert to fraction form
    86,405.22/129,625.92 = 36,485.46/x
  3. Step 3: Cross multiply
    86,405.22x = 129,625.92 × 36,485.46
  4. Step 4: Simplify right side
    86,405.22x = 4,729,461,319.12
  5. Step 5: Solve for x
    x = 4,729,461,319.12/86,405.22
  6. Step 6: Final answer
    x = 54,735.83

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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.