Home / 66,533.72-99,770.49-19,137.96

Finding the Fourth Proportional to 66,533.72, 99,770.49 and 19,137.96

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Solution

The fourth proportional to 66,533.72, 99,770.49 and 19,137.96 is: 28,698.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,533.72 : 99,770.49 = 19,137.96 : x
  2. Step 2: Convert to fraction form
    66,533.72/99,770.49 = 19,137.96/x
  3. Step 3: Cross multiply
    66,533.72x = 99,770.49 × 19,137.96
  4. Step 4: Simplify right side
    66,533.72x = 1,909,403,646.80
  5. Step 5: Solve for x
    x = 1,909,403,646.80/66,533.72
  6. Step 6: Final answer
    x = 28,698.29

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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.