Home / 78,928.04-118,318.24-28,994.73

Finding the Fourth Proportional to 78,928.04, 118,318.24 and 28,994.73

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Solution

The fourth proportional to 78,928.04, 118,318.24 and 28,994.73 is: 43,464.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,928.04 : 118,318.24 = 28,994.73 : x
  2. Step 2: Convert to fraction form
    78,928.04/118,318.24 = 28,994.73/x
  3. Step 3: Cross multiply
    78,928.04x = 118,318.24 × 28,994.73
  4. Step 4: Simplify right side
    78,928.04x = 3,430,604,831.28
  5. Step 5: Solve for x
    x = 3,430,604,831.28/78,928.04
  6. Step 6: Final answer
    x = 43,464.97

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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.