Home / 80,631.48-120,947.04-21,467.16

Finding the Fourth Proportional to 80,631.48, 120,947.04 and 21,467.16

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Solution

The fourth proportional to 80,631.48, 120,947.04 and 21,467.16 is: 32,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,631.48 : 120,947.04 = 21,467.16 : x
  2. Step 2: Convert to fraction form
    80,631.48/120,947.04 = 21,467.16/x
  3. Step 3: Cross multiply
    80,631.48x = 120,947.04 × 21,467.16
  4. Step 4: Simplify right side
    80,631.48x = 2,596,389,459.21
  5. Step 5: Solve for x
    x = 2,596,389,459.21/80,631.48
  6. Step 6: Final answer
    x = 32,200.69

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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.