Home / 75,688.16-104,431.24-49,844.04

Finding the Fourth Proportional to 75,688.16, 104,431.24 and 49,844.04

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Solution

The fourth proportional to 75,688.16, 104,431.24 and 49,844.04 is: 68,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,688.16 : 104,431.24 = 49,844.04 : x
  2. Step 2: Convert to fraction form
    75,688.16/104,431.24 = 49,844.04/x
  3. Step 3: Cross multiply
    75,688.16x = 104,431.24 × 49,844.04
  4. Step 4: Simplify right side
    75,688.16x = 5,205,274,903.81
  5. Step 5: Solve for x
    x = 5,205,274,903.81/75,688.16
  6. Step 6: Final answer
    x = 68,772.64

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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.