Home / 72,733.37-100,315.05-49,776.77

Finding the Fourth Proportional to 72,733.37, 100,315.05 and 49,776.77

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Solution

The fourth proportional to 72,733.37, 100,315.05 and 49,776.77 is: 68,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,733.37 : 100,315.05 = 49,776.77 : x
  2. Step 2: Convert to fraction form
    72,733.37/100,315.05 = 49,776.77/x
  3. Step 3: Cross multiply
    72,733.37x = 100,315.05 × 49,776.77
  4. Step 4: Simplify right side
    72,733.37x = 4,993,358,669.81
  5. Step 5: Solve for x
    x = 4,993,358,669.81/72,733.37
  6. Step 6: Final answer
    x = 68,652.93

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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.