Home / 58,228.86-87,321.82-20,778.92

Finding the Fourth Proportional to 58,228.86, 87,321.82 and 20,778.92

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Solution

The fourth proportional to 58,228.86, 87,321.82 and 20,778.92 is: 31,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,228.86 : 87,321.82 = 20,778.92 : x
  2. Step 2: Convert to fraction form
    58,228.86/87,321.82 = 20,778.92/x
  3. Step 3: Cross multiply
    58,228.86x = 87,321.82 × 20,778.92
  4. Step 4: Simplify right side
    58,228.86x = 1,814,453,112.03
  5. Step 5: Solve for x
    x = 1,814,453,112.03/58,228.86
  6. Step 6: Final answer
    x = 31,160.72

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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.