Home / 57,715.03-86,577.47-20,271.83

Finding the Fourth Proportional to 57,715.03, 86,577.47 and 20,271.83

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Solution

The fourth proportional to 57,715.03, 86,577.47 and 20,271.83 is: 30,409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.03 : 86,577.47 = 20,271.83 : x
  2. Step 2: Convert to fraction form
    57,715.03/86,577.47 = 20,271.83/x
  3. Step 3: Cross multiply
    57,715.03x = 86,577.47 × 20,271.83
  4. Step 4: Simplify right side
    57,715.03x = 1,755,083,652.31
  5. Step 5: Solve for x
    x = 1,755,083,652.31/57,715.03
  6. Step 6: Final answer
    x = 30,409.48

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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.