Home / 72,400.86-108,567.21-28,048.38

Finding the Fourth Proportional to 72,400.86, 108,567.21 and 28,048.38

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Solution

The fourth proportional to 72,400.86, 108,567.21 and 28,048.38 is: 42,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,400.86 : 108,567.21 = 28,048.38 : x
  2. Step 2: Convert to fraction form
    72,400.86/108,567.21 = 28,048.38/x
  3. Step 3: Cross multiply
    72,400.86x = 108,567.21 × 28,048.38
  4. Step 4: Simplify right side
    72,400.86x = 3,045,134,361.62
  5. Step 5: Solve for x
    x = 3,045,134,361.62/72,400.86
  6. Step 6: Final answer
    x = 42,059.37

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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.