Home / 57,582.64-86,367.08-20,139.84

Finding the Fourth Proportional to 57,582.64, 86,367.08 and 20,139.84

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Solution

The fourth proportional to 57,582.64, 86,367.08 and 20,139.84 is: 30,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,582.64 : 86,367.08 = 20,139.84 : x
  2. Step 2: Convert to fraction form
    57,582.64/86,367.08 = 20,139.84/x
  3. Step 3: Cross multiply
    57,582.64x = 86,367.08 × 20,139.84
  4. Step 4: Simplify right side
    57,582.64x = 1,739,419,172.47
  5. Step 5: Solve for x
    x = 1,739,419,172.47/57,582.64
  6. Step 6: Final answer
    x = 30,207.35

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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.