Home / 85,106.10-127,616.40-49,579.14

Finding the Fourth Proportional to 85,106.10, 127,616.40 and 49,579.14

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Solution

The fourth proportional to 85,106.10, 127,616.40 and 49,579.14 is: 74,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,106.10 : 127,616.40 = 49,579.14 : x
  2. Step 2: Convert to fraction form
    85,106.10/127,616.40 = 49,579.14/x
  3. Step 3: Cross multiply
    85,106.10x = 127,616.40 × 49,579.14
  4. Step 4: Simplify right side
    85,106.10x = 6,327,111,361.90
  5. Step 5: Solve for x
    x = 6,327,111,361.90/85,106.10
  6. Step 6: Final answer
    x = 74,343.81

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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.