Home / 81,332.24-122,004.60-28,002.32

Finding the Fourth Proportional to 81,332.24, 122,004.60 and 28,002.32

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Solution

The fourth proportional to 81,332.24, 122,004.60 and 28,002.32 is: 42,005.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,332.24 : 122,004.60 = 28,002.32 : x
  2. Step 2: Convert to fraction form
    81,332.24/122,004.60 = 28,002.32/x
  3. Step 3: Cross multiply
    81,332.24x = 122,004.60 × 28,002.32
  4. Step 4: Simplify right side
    81,332.24x = 3,416,411,850.67
  5. Step 5: Solve for x
    x = 3,416,411,850.67/81,332.24
  6. Step 6: Final answer
    x = 42,005.63

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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.