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Finding the Fourth Proportional to 85,930.91, 118,598.91 and 50,120.92

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Solution

The fourth proportional to 85,930.91, 118,598.91 and 50,120.92 is: 69,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,930.91 : 118,598.91 = 50,120.92 : x
  2. Step 2: Convert to fraction form
    85,930.91/118,598.91 = 50,120.92/x
  3. Step 3: Cross multiply
    85,930.91x = 118,598.91 × 50,120.92
  4. Step 4: Simplify right side
    85,930.91x = 5,944,286,312.10
  5. Step 5: Solve for x
    x = 5,944,286,312.10/85,930.91
  6. Step 6: Final answer
    x = 69,175.18

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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.