Home / 76,975.20-115,556.40-48,895.20

Finding the Fourth Proportional to 76,975.20, 115,556.40 and 48,895.20

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Solution

The fourth proportional to 76,975.20, 115,556.40 and 48,895.20 is: 73,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,975.20 : 115,556.40 = 48,895.20 : x
  2. Step 2: Convert to fraction form
    76,975.20/115,556.40 = 48,895.20/x
  3. Step 3: Cross multiply
    76,975.20x = 115,556.40 × 48,895.20
  4. Step 4: Simplify right side
    76,975.20x = 5,650,153,289.28
  5. Step 5: Solve for x
    x = 5,650,153,289.28/76,975.20
  6. Step 6: Final answer
    x = 73,402.26

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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.