Home / 57,457-86,190.54-15,904.36

Finding the Fourth Proportional to 57,457, 86,190.54 and 15,904.36

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Solution

The fourth proportional to 57,457, 86,190.54 and 15,904.36 is: 23,857.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,457 : 86,190.54 = 15,904.36 : x
  2. Step 2: Convert to fraction form
    57,457/86,190.54 = 15,904.36/x
  3. Step 3: Cross multiply
    57,457x = 86,190.54 × 15,904.36
  4. Step 4: Simplify right side
    57,457x = 1,370,805,376.75
  5. Step 5: Solve for x
    x = 1,370,805,376.75/57,457
  6. Step 6: Final answer
    x = 23,857.94

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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.