Home / 45,520.80-68,235.78-21,784.56

Finding the Fourth Proportional to 45,520.80, 68,235.78 and 21,784.56

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Solution

The fourth proportional to 45,520.80, 68,235.78 and 21,784.56 is: 32,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,520.80 : 68,235.78 = 21,784.56 : x
  2. Step 2: Convert to fraction form
    45,520.80/68,235.78 = 21,784.56/x
  3. Step 3: Cross multiply
    45,520.80x = 68,235.78 × 21,784.56
  4. Step 4: Simplify right side
    45,520.80x = 1,486,486,443.56
  5. Step 5: Solve for x
    x = 1,486,486,443.56/45,520.80
  6. Step 6: Final answer
    x = 32,655.10

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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.