Home / 58,221.88-87,349.83-18,778.12

Finding the Fourth Proportional to 58,221.88, 87,349.83 and 18,778.12

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Solution

The fourth proportional to 58,221.88, 87,349.83 and 18,778.12 is: 28,172.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.88 : 87,349.83 = 18,778.12 : x
  2. Step 2: Convert to fraction form
    58,221.88/87,349.83 = 18,778.12/x
  3. Step 3: Cross multiply
    58,221.88x = 87,349.83 × 18,778.12
  4. Step 4: Simplify right side
    58,221.88x = 1,640,265,589.72
  5. Step 5: Solve for x
    x = 1,640,265,589.72/58,221.88
  6. Step 6: Final answer
    x = 28,172.67

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1.5x scale

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.