Home / 86,311.05-129,480.53-25,527.48

Finding the Fourth Proportional to 86,311.05, 129,480.53 and 25,527.48

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Solution

The fourth proportional to 86,311.05, 129,480.53 and 25,527.48 is: 38,295.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,311.05 : 129,480.53 = 25,527.48 : x
  2. Step 2: Convert to fraction form
    86,311.05/129,480.53 = 25,527.48/x
  3. Step 3: Cross multiply
    86,311.05x = 129,480.53 × 25,527.48
  4. Step 4: Simplify right side
    86,311.05x = 3,305,311,639.96
  5. Step 5: Solve for x
    x = 3,305,311,639.96/86,311.05
  6. Step 6: Final answer
    x = 38,295.35

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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.