Home / 78,548.96-108,401.36-45,015.04

Finding the Fourth Proportional to 78,548.96, 108,401.36 and 45,015.04

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Solution

The fourth proportional to 78,548.96, 108,401.36 and 45,015.04 is: 62,122.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,548.96 : 108,401.36 = 45,015.04 : x
  2. Step 2: Convert to fraction form
    78,548.96/108,401.36 = 45,015.04/x
  3. Step 3: Cross multiply
    78,548.96x = 108,401.36 × 45,015.04
  4. Step 4: Simplify right side
    78,548.96x = 4,879,691,556.45
  5. Step 5: Solve for x
    x = 4,879,691,556.45/78,548.96
  6. Step 6: Final answer
    x = 62,122.93

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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.