Home / 57,428.36-86,054.60-38,638.79

Finding the Fourth Proportional to 57,428.36, 86,054.60 and 38,638.79

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Solution

The fourth proportional to 57,428.36, 86,054.60 and 38,638.79 is: 57,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,428.36 : 86,054.60 = 38,638.79 : x
  2. Step 2: Convert to fraction form
    57,428.36/86,054.60 = 38,638.79/x
  3. Step 3: Cross multiply
    57,428.36x = 86,054.60 × 38,638.79
  4. Step 4: Simplify right side
    57,428.36x = 3,325,045,284.26
  5. Step 5: Solve for x
    x = 3,325,045,284.26/57,428.36
  6. Step 6: Final answer
    x = 57,899.02

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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.