Home / 57,922.75-86,891.01-20,475.10

Finding the Fourth Proportional to 57,922.75, 86,891.01 and 20,475.10

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Solution

The fourth proportional to 57,922.75, 86,891.01 and 20,475.10 is: 30,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,922.75 : 86,891.01 = 20,475.10 : x
  2. Step 2: Convert to fraction form
    57,922.75/86,891.01 = 20,475.10/x
  3. Step 3: Cross multiply
    57,922.75x = 86,891.01 × 20,475.10
  4. Step 4: Simplify right side
    57,922.75x = 1,779,102,118.85
  5. Step 5: Solve for x
    x = 1,779,102,118.85/57,922.75
  6. Step 6: Final answer
    x = 30,715.08

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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.