Home / 275,314.08-412,921.85-72,911.55

Finding the Fourth Proportional to 275,314.08, 412,921.85 and 72,911.55

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Solution

The fourth proportional to 275,314.08, 412,921.85 and 72,911.55 is: 109,354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,314.08 : 412,921.85 = 72,911.55 : x
  2. Step 2: Convert to fraction form
    275,314.08/412,921.85 = 72,911.55/x
  3. Step 3: Cross multiply
    275,314.08x = 412,921.85 × 72,911.55
  4. Step 4: Simplify right side
    275,314.08x = 30,106,771,747.81
  5. Step 5: Solve for x
    x = 30,106,771,747.81/275,314.08
  6. Step 6: Final answer
    x = 109,354.28

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1.5x scale

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.