Home / 61,203.15-84,438.69-39,994.73

Finding the Fourth Proportional to 61,203.15, 84,438.69 and 39,994.73

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Solution

The fourth proportional to 61,203.15, 84,438.69 and 39,994.73 is: 55,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.15 : 84,438.69 = 39,994.73 : x
  2. Step 2: Convert to fraction form
    61,203.15/84,438.69 = 39,994.73/x
  3. Step 3: Cross multiply
    61,203.15x = 84,438.69 × 39,994.73
  4. Step 4: Simplify right side
    61,203.15x = 3,377,102,185.91
  5. Step 5: Solve for x
    x = 3,377,102,185.91/61,203.15
  6. Step 6: Final answer
    x = 55,178.57

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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.