Home / 65,830.51-90,846.53-40,336.93

Finding the Fourth Proportional to 65,830.51, 90,846.53 and 40,336.93

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Solution

The fourth proportional to 65,830.51, 90,846.53 and 40,336.93 is: 55,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,830.51 : 90,846.53 = 40,336.93 : x
  2. Step 2: Convert to fraction form
    65,830.51/90,846.53 = 40,336.93/x
  3. Step 3: Cross multiply
    65,830.51x = 90,846.53 × 40,336.93
  4. Step 4: Simplify right side
    65,830.51x = 3,664,470,121.35
  5. Step 5: Solve for x
    x = 3,664,470,121.35/65,830.51
  6. Step 6: Final answer
    x = 55,665.22

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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.