Home / 78,847.86-118,228.04-26,228.64

Finding the Fourth Proportional to 78,847.86, 118,228.04 and 26,228.64

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Solution

The fourth proportional to 78,847.86, 118,228.04 and 26,228.64 is: 39,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847.86 : 118,228.04 = 26,228.64 : x
  2. Step 2: Convert to fraction form
    78,847.86/118,228.04 = 26,228.64/x
  3. Step 3: Cross multiply
    78,847.86x = 118,228.04 × 26,228.64
  4. Step 4: Simplify right side
    78,847.86x = 3,100,960,567.92
  5. Step 5: Solve for x
    x = 3,100,960,567.92/78,847.86
  6. Step 6: Final answer
    x = 39,328.40

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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.