Home / 80,853.26-121,312.83-36,449.06

Finding the Fourth Proportional to 80,853.26, 121,312.83 and 36,449.06

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Solution

The fourth proportional to 80,853.26, 121,312.83 and 36,449.06 is: 54,688.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,853.26 : 121,312.83 = 36,449.06 : x
  2. Step 2: Convert to fraction form
    80,853.26/121,312.83 = 36,449.06/x
  3. Step 3: Cross multiply
    80,853.26x = 121,312.83 × 36,449.06
  4. Step 4: Simplify right side
    80,853.26x = 4,421,738,619.44
  5. Step 5: Solve for x
    x = 4,421,738,619.44/80,853.26
  6. Step 6: Final answer
    x = 54,688.44

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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.