Home / 66,961.12-92,307.66-51,017.92

Finding the Fourth Proportional to 66,961.12, 92,307.66 and 51,017.92

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Solution

The fourth proportional to 66,961.12, 92,307.66 and 51,017.92 is: 70,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,961.12 : 92,307.66 = 51,017.92 : x
  2. Step 2: Convert to fraction form
    66,961.12/92,307.66 = 51,017.92/x
  3. Step 3: Cross multiply
    66,961.12x = 92,307.66 × 51,017.92
  4. Step 4: Simplify right side
    66,961.12x = 4,709,344,813.27
  5. Step 5: Solve for x
    x = 4,709,344,813.27/66,961.12
  6. Step 6: Final answer
    x = 70,329.54

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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.