Home / 57,781.00-86,670.96-31,139.54

Finding the Fourth Proportional to 57,781.00, 86,670.96 and 31,139.54

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Solution

The fourth proportional to 57,781.00, 86,670.96 and 31,139.54 is: 46,709.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781.00 : 86,670.96 = 31,139.54 : x
  2. Step 2: Convert to fraction form
    57,781.00/86,670.96 = 31,139.54/x
  3. Step 3: Cross multiply
    57,781.00x = 86,670.96 × 31,139.54
  4. Step 4: Simplify right side
    57,781.00x = 2,698,893,775.81
  5. Step 5: Solve for x
    x = 2,698,893,775.81/57,781.00
  6. Step 6: Final answer
    x = 46,709.02

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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.