Home / 72,646.20-108,969.30-46,272.60

Finding the Fourth Proportional to 72,646.20, 108,969.30 and 46,272.60

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Solution

The fourth proportional to 72,646.20, 108,969.30 and 46,272.60 is: 69,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,646.20 : 108,969.30 = 46,272.60 : x
  2. Step 2: Convert to fraction form
    72,646.20/108,969.30 = 46,272.60/x
  3. Step 3: Cross multiply
    72,646.20x = 108,969.30 × 46,272.60
  4. Step 4: Simplify right side
    72,646.20x = 5,042,292,831.18
  5. Step 5: Solve for x
    x = 5,042,292,831.18/72,646.20
  6. Step 6: Final answer
    x = 69,408.90

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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.