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Finding the Fourth Proportional to 85,336.88, 117,764.70 and 49,547.84

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Solution

The fourth proportional to 85,336.88, 117,764.70 and 49,547.84 is: 68,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,336.88 : 117,764.70 = 49,547.84 : x
  2. Step 2: Convert to fraction form
    85,336.88/117,764.70 = 49,547.84/x
  3. Step 3: Cross multiply
    85,336.88x = 117,764.70 × 49,547.84
  4. Step 4: Simplify right side
    85,336.88x = 5,834,986,513.25
  5. Step 5: Solve for x
    x = 5,834,986,513.25/85,336.88
  6. Step 6: Final answer
    x = 68,375.91

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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.