Home / 57,428.73-86,055.17-38,639.16

Finding the Fourth Proportional to 57,428.73, 86,055.17 and 38,639.16

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Solution

The fourth proportional to 57,428.73, 86,055.17 and 38,639.16 is: 57,899.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,428.73 : 86,055.17 = 38,639.16 : x
  2. Step 2: Convert to fraction form
    57,428.73/86,055.17 = 38,639.16/x
  3. Step 3: Cross multiply
    57,428.73x = 86,055.17 × 38,639.16
  4. Step 4: Simplify right side
    57,428.73x = 3,325,099,289.26
  5. Step 5: Solve for x
    x = 3,325,099,289.26/57,428.73
  6. Step 6: Final answer
    x = 57,899.58

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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.