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Finding the Fourth Proportional to 85,397.67, 117,873.81 and 49,603.77

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Solution

The fourth proportional to 85,397.67, 117,873.81 and 49,603.77 is: 68,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,397.67 : 117,873.81 = 49,603.77 : x
  2. Step 2: Convert to fraction form
    85,397.67/117,873.81 = 49,603.77/x
  3. Step 3: Cross multiply
    85,397.67x = 117,873.81 × 49,603.77
  4. Step 4: Simplify right side
    85,397.67x = 5,846,985,360.26
  5. Step 5: Solve for x
    x = 5,846,985,360.26/85,397.67
  6. Step 6: Final answer
    x = 68,467.74

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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.