Home / 66,505.42-91,779.49-37,829.20

Finding the Fourth Proportional to 66,505.42, 91,779.49 and 37,829.20

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Solution

The fourth proportional to 66,505.42, 91,779.49 and 37,829.20 is: 52,205.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,505.42 : 91,779.49 = 37,829.20 : x
  2. Step 2: Convert to fraction form
    66,505.42/91,779.49 = 37,829.20/x
  3. Step 3: Cross multiply
    66,505.42x = 91,779.49 × 37,829.20
  4. Step 4: Simplify right side
    66,505.42x = 3,471,944,359.09
  5. Step 5: Solve for x
    x = 3,471,944,359.09/66,505.42
  6. Step 6: Final answer
    x = 52,205.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.