Home / 66,156.15-99,249.61-21,783.29

Finding the Fourth Proportional to 66,156.15, 99,249.61 and 21,783.29

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Solution

The fourth proportional to 66,156.15, 99,249.61 and 21,783.29 is: 32,680.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,156.15 : 99,249.61 = 21,783.29 : x
  2. Step 2: Convert to fraction form
    66,156.15/99,249.61 = 21,783.29/x
  3. Step 3: Cross multiply
    66,156.15x = 99,249.61 × 21,783.29
  4. Step 4: Simplify right side
    66,156.15x = 2,161,983,044.59
  5. Step 5: Solve for x
    x = 2,161,983,044.59/66,156.15
  6. Step 6: Final answer
    x = 32,680.00

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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.