Home / 80,522.16-120,783.24-21,362.46

Finding the Fourth Proportional to 80,522.16, 120,783.24 and 21,362.46

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Solution

The fourth proportional to 80,522.16, 120,783.24 and 21,362.46 is: 32,043.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,522.16 : 120,783.24 = 21,362.46 : x
  2. Step 2: Convert to fraction form
    80,522.16/120,783.24 = 21,362.46/x
  3. Step 3: Cross multiply
    80,522.16x = 120,783.24 × 21,362.46
  4. Step 4: Simplify right side
    80,522.16x = 2,580,227,133.17
  5. Step 5: Solve for x
    x = 2,580,227,133.17/80,522.16
  6. Step 6: Final answer
    x = 32,043.69

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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.