Home / 58,138.02-87,189.15-18,684.54

Finding the Fourth Proportional to 58,138.02, 87,189.15 and 18,684.54

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Solution

The fourth proportional to 58,138.02, 87,189.15 and 18,684.54 is: 28,021.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,138.02 : 87,189.15 = 18,684.54 : x
  2. Step 2: Convert to fraction form
    58,138.02/87,189.15 = 18,684.54/x
  3. Step 3: Cross multiply
    58,138.02x = 87,189.15 × 18,684.54
  4. Step 4: Simplify right side
    58,138.02x = 1,629,089,160.74
  5. Step 5: Solve for x
    x = 1,629,089,160.74/58,138.02
  6. Step 6: Final answer
    x = 28,021.06

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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.