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Finding the Fourth Proportional to 69,633.94, 96,094.74 and 39,418.72

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Solution

The fourth proportional to 69,633.94, 96,094.74 and 39,418.72 is: 54,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,633.94 : 96,094.74 = 39,418.72 : x
  2. Step 2: Convert to fraction form
    69,633.94/96,094.74 = 39,418.72/x
  3. Step 3: Cross multiply
    69,633.94x = 96,094.74 × 39,418.72
  4. Step 4: Simplify right side
    69,633.94x = 3,787,931,649.53
  5. Step 5: Solve for x
    x = 3,787,931,649.53/69,633.94
  6. Step 6: Final answer
    x = 54,397.78

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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.