Home / 80,733.42-121,059.63-51,210.54

Finding the Fourth Proportional to 80,733.42, 121,059.63 and 51,210.54

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Solution

The fourth proportional to 80,733.42, 121,059.63 and 51,210.54 is: 76,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,733.42 : 121,059.63 = 51,210.54 : x
  2. Step 2: Convert to fraction form
    80,733.42/121,059.63 = 51,210.54/x
  3. Step 3: Cross multiply
    80,733.42x = 121,059.63 × 51,210.54
  4. Step 4: Simplify right side
    80,733.42x = 6,199,529,024.50
  5. Step 5: Solve for x
    x = 6,199,529,024.50/80,733.42
  6. Step 6: Final answer
    x = 76,790.12

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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.