Home / 86,298.44-129,478.83-30,146.84

Finding the Fourth Proportional to 86,298.44, 129,478.83 and 30,146.84

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Solution

The fourth proportional to 86,298.44, 129,478.83 and 30,146.84 is: 45,231.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,298.44 : 129,478.83 = 30,146.84 : x
  2. Step 2: Convert to fraction form
    86,298.44/129,478.83 = 30,146.84/x
  3. Step 3: Cross multiply
    86,298.44x = 129,478.83 × 30,146.84
  4. Step 4: Simplify right side
    86,298.44x = 3,903,377,571.40
  5. Step 5: Solve for x
    x = 3,903,377,571.40/86,298.44
  6. Step 6: Final answer
    x = 45,231.15

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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.