Home / 78,439.62-108,255.89-46,608.55

Finding the Fourth Proportional to 78,439.62, 108,255.89 and 46,608.55

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Solution

The fourth proportional to 78,439.62, 108,255.89 and 46,608.55 is: 64,325.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,439.62 : 108,255.89 = 46,608.55 : x
  2. Step 2: Convert to fraction form
    78,439.62/108,255.89 = 46,608.55/x
  3. Step 3: Cross multiply
    78,439.62x = 108,255.89 × 46,608.55
  4. Step 4: Simplify right side
    78,439.62x = 5,045,649,907.74
  5. Step 5: Solve for x
    x = 5,045,649,907.74/78,439.62
  6. Step 6: Final answer
    x = 64,325.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.