Home / 57,718.20-86,585.40-18,271.20

Finding the Fourth Proportional to 57,718.20, 86,585.40 and 18,271.20

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Solution

The fourth proportional to 57,718.20, 86,585.40 and 18,271.20 is: 27,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,718.20 : 86,585.40 = 18,271.20 : x
  2. Step 2: Convert to fraction form
    57,718.20/86,585.40 = 18,271.20/x
  3. Step 3: Cross multiply
    57,718.20x = 86,585.40 × 18,271.20
  4. Step 4: Simplify right side
    57,718.20x = 1,582,019,160.48
  5. Step 5: Solve for x
    x = 1,582,019,160.48/57,718.20
  6. Step 6: Final answer
    x = 27,409.36

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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.