Home / 80,902.08-111,612.36-49,059.36

Finding the Fourth Proportional to 80,902.08, 111,612.36 and 49,059.36

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Solution

The fourth proportional to 80,902.08, 111,612.36 and 49,059.36 is: 67,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,902.08 : 111,612.36 = 49,059.36 : x
  2. Step 2: Convert to fraction form
    80,902.08/111,612.36 = 49,059.36/x
  3. Step 3: Cross multiply
    80,902.08x = 111,612.36 × 49,059.36
  4. Step 4: Simplify right side
    80,902.08x = 5,475,630,949.69
  5. Step 5: Solve for x
    x = 5,475,630,949.69/80,902.08
  6. Step 6: Final answer
    x = 67,682.20

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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.