Home / 57,720.09-86,579.33-18,277.19

Finding the Fourth Proportional to 57,720.09, 86,579.33 and 18,277.19

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Solution

The fourth proportional to 57,720.09, 86,579.33 and 18,277.19 is: 27,415.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,720.09 : 86,579.33 = 18,277.19 : x
  2. Step 2: Convert to fraction form
    57,720.09/86,579.33 = 18,277.19/x
  3. Step 3: Cross multiply
    57,720.09x = 86,579.33 × 18,277.19
  4. Step 4: Simplify right side
    57,720.09x = 1,582,427,254.69
  5. Step 5: Solve for x
    x = 1,582,427,254.69/57,720.09
  6. Step 6: Final answer
    x = 27,415.54

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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.