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Finding the Fourth Proportional to 66,746.69, 92,101.33 and 39,883.52

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Solution

The fourth proportional to 66,746.69, 92,101.33 and 39,883.52 is: 55,033.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,746.69 : 92,101.33 = 39,883.52 : x
  2. Step 2: Convert to fraction form
    66,746.69/92,101.33 = 39,883.52/x
  3. Step 3: Cross multiply
    66,746.69x = 92,101.33 × 39,883.52
  4. Step 4: Simplify right side
    66,746.69x = 3,673,325,237.08
  5. Step 5: Solve for x
    x = 3,673,325,237.08/66,746.69
  6. Step 6: Final answer
    x = 55,033.82

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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.