Home / 80,502.06-111,070.11-50,317.98

Finding the Fourth Proportional to 80,502.06, 111,070.11 and 50,317.98

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Solution

The fourth proportional to 80,502.06, 111,070.11 and 50,317.98 is: 69,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,502.06 : 111,070.11 = 50,317.98 : x
  2. Step 2: Convert to fraction form
    80,502.06/111,070.11 = 50,317.98/x
  3. Step 3: Cross multiply
    80,502.06x = 111,070.11 × 50,317.98
  4. Step 4: Simplify right side
    80,502.06x = 5,588,823,573.58
  5. Step 5: Solve for x
    x = 5,588,823,573.58/80,502.06
  6. Step 6: Final answer
    x = 69,424.60

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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.