Home / 57,221.08-85,835.39-19,784.77

Finding the Fourth Proportional to 57,221.08, 85,835.39 and 19,784.77

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Solution

The fourth proportional to 57,221.08, 85,835.39 and 19,784.77 is: 29,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,221.08 : 85,835.39 = 19,784.77 : x
  2. Step 2: Convert to fraction form
    57,221.08/85,835.39 = 19,784.77/x
  3. Step 3: Cross multiply
    57,221.08x = 85,835.39 × 19,784.77
  4. Step 4: Simplify right side
    57,221.08x = 1,698,233,449.01
  5. Step 5: Solve for x
    x = 1,698,233,449.01/57,221.08
  6. Step 6: Final answer
    x = 29,678.46

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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.