Home / 86,485.37-129,770.42-58,040.24

Finding the Fourth Proportional to 86,485.37, 129,770.42 and 58,040.24

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Solution

The fourth proportional to 86,485.37, 129,770.42 and 58,040.24 is: 87,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.37 : 129,770.42 = 58,040.24 : x
  2. Step 2: Convert to fraction form
    86,485.37/129,770.42 = 58,040.24/x
  3. Step 3: Cross multiply
    86,485.37x = 129,770.42 × 58,040.24
  4. Step 4: Simplify right side
    86,485.37x = 7,531,906,321.70
  5. Step 5: Solve for x
    x = 7,531,906,321.70/86,485.37
  6. Step 6: Final answer
    x = 87,088.79

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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.