Home / 61,000.86-84,181.60-34,145.84

Finding the Fourth Proportional to 61,000.86, 84,181.60 and 34,145.84

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Solution

The fourth proportional to 61,000.86, 84,181.60 and 34,145.84 is: 47,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,000.86 : 84,181.60 = 34,145.84 : x
  2. Step 2: Convert to fraction form
    61,000.86/84,181.60 = 34,145.84/x
  3. Step 3: Cross multiply
    61,000.86x = 84,181.60 × 34,145.84
  4. Step 4: Simplify right side
    61,000.86x = 2,874,451,444.54
  5. Step 5: Solve for x
    x = 2,874,451,444.54/61,000.86
  6. Step 6: Final answer
    x = 47,121.49

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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.