Home / 86,208.06-129,270.44-30,046.85

Finding the Fourth Proportional to 86,208.06, 129,270.44 and 30,046.85

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Solution

The fourth proportional to 86,208.06, 129,270.44 and 30,046.85 is: 45,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208.06 : 129,270.44 = 30,046.85 : x
  2. Step 2: Convert to fraction form
    86,208.06/129,270.44 = 30,046.85/x
  3. Step 3: Cross multiply
    86,208.06x = 129,270.44 × 30,046.85
  4. Step 4: Simplify right side
    86,208.06x = 3,884,168,723.53
  5. Step 5: Solve for x
    x = 3,884,168,723.53/86,208.06
  6. Step 6: Final answer
    x = 45,055.75

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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.