Home / 66,431.20-99,625.20-22,050.40

Finding the Fourth Proportional to 66,431.20, 99,625.20 and 22,050.40

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Solution

The fourth proportional to 66,431.20, 99,625.20 and 22,050.40 is: 33,068.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431.20 : 99,625.20 = 22,050.40 : x
  2. Step 2: Convert to fraction form
    66,431.20/99,625.20 = 22,050.40/x
  3. Step 3: Cross multiply
    66,431.20x = 99,625.20 × 22,050.40
  4. Step 4: Simplify right side
    66,431.20x = 2,196,775,510.08
  5. Step 5: Solve for x
    x = 2,196,775,510.08/66,431.20
  6. Step 6: Final answer
    x = 33,068.43

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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.