Home / 66,905.65-92,249.04-57,814.75

Finding the Fourth Proportional to 66,905.65, 92,249.04 and 57,814.75

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Solution

The fourth proportional to 66,905.65, 92,249.04 and 57,814.75 is: 79,714.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,905.65 : 92,249.04 = 57,814.75 : x
  2. Step 2: Convert to fraction form
    66,905.65/92,249.04 = 57,814.75/x
  3. Step 3: Cross multiply
    66,905.65x = 92,249.04 × 57,814.75
  4. Step 4: Simplify right side
    66,905.65x = 5,333,355,185.34
  5. Step 5: Solve for x
    x = 5,333,355,185.34/66,905.65
  6. Step 6: Final answer
    x = 79,714.57

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1.5x scale

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.