Home / 45,249.18-67,783.08-21,579.72

Finding the Fourth Proportional to 45,249.18, 67,783.08 and 21,579.72

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Solution

The fourth proportional to 45,249.18, 67,783.08 and 21,579.72 is: 32,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,249.18 : 67,783.08 = 21,579.72 : x
  2. Step 2: Convert to fraction form
    45,249.18/67,783.08 = 21,579.72/x
  3. Step 3: Cross multiply
    45,249.18x = 67,783.08 × 21,579.72
  4. Step 4: Simplify right side
    45,249.18x = 1,462,739,887.14
  5. Step 5: Solve for x
    x = 1,462,739,887.14/45,249.18
  6. Step 6: Final answer
    x = 32,326.33

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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.