Home / 85,972.19-128,994.73-41,631.98

Finding the Fourth Proportional to 85,972.19, 128,994.73 and 41,631.98

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Solution

The fourth proportional to 85,972.19, 128,994.73 and 41,631.98 is: 62,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,972.19 : 128,994.73 = 41,631.98 : x
  2. Step 2: Convert to fraction form
    85,972.19/128,994.73 = 41,631.98/x
  3. Step 3: Cross multiply
    85,972.19x = 128,994.73 × 41,631.98
  4. Step 4: Simplify right side
    85,972.19x = 5,370,305,270.41
  5. Step 5: Solve for x
    x = 5,370,305,270.41/85,972.19
  6. Step 6: Final answer
    x = 62,465.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.