Home / 57,808.60-86,718.66-15,689.37

Finding the Fourth Proportional to 57,808.60, 86,718.66 and 15,689.37

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Solution

The fourth proportional to 57,808.60, 86,718.66 and 15,689.37 is: 23,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,808.60 : 86,718.66 = 15,689.37 : x
  2. Step 2: Convert to fraction form
    57,808.60/86,718.66 = 15,689.37/x
  3. Step 3: Cross multiply
    57,808.60x = 86,718.66 × 15,689.37
  4. Step 4: Simplify right side
    57,808.60x = 1,360,561,142.64
  5. Step 5: Solve for x
    x = 1,360,561,142.64/57,808.60
  6. Step 6: Final answer
    x = 23,535.62

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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.