Home / 72,622.08-108,918-28,247.82

Finding the Fourth Proportional to 72,622.08, 108,918 and 28,247.82

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Solution

The fourth proportional to 72,622.08, 108,918 and 28,247.82 is: 42,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,622.08 : 108,918 = 28,247.82 : x
  2. Step 2: Convert to fraction form
    72,622.08/108,918 = 28,247.82/x
  3. Step 3: Cross multiply
    72,622.08x = 108,918 × 28,247.82
  4. Step 4: Simplify right side
    72,622.08x = 3,076,696,058.76
  5. Step 5: Solve for x
    x = 3,076,696,058.76/72,622.08
  6. Step 6: Final answer
    x = 42,365.85

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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.