Home / 92,855.48-128,138.63-50,414.04

Finding the Fourth Proportional to 92,855.48, 128,138.63 and 50,414.04

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Solution

The fourth proportional to 92,855.48, 128,138.63 and 50,414.04 is: 69,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,855.48 : 128,138.63 = 50,414.04 : x
  2. Step 2: Convert to fraction form
    92,855.48/128,138.63 = 50,414.04/x
  3. Step 3: Cross multiply
    92,855.48x = 128,138.63 × 50,414.04
  4. Step 4: Simplify right side
    92,855.48x = 6,459,985,766.30
  5. Step 5: Solve for x
    x = 6,459,985,766.30/92,855.48
  6. Step 6: Final answer
    x = 69,570.33

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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.