Home / 82,405.63-123,608.45-29,802.81

Finding the Fourth Proportional to 82,405.63, 123,608.45 and 29,802.81

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Solution

The fourth proportional to 82,405.63, 123,608.45 and 29,802.81 is: 44,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,405.63 : 123,608.45 = 29,802.81 : x
  2. Step 2: Convert to fraction form
    82,405.63/123,608.45 = 29,802.81/x
  3. Step 3: Cross multiply
    82,405.63x = 123,608.45 × 29,802.81
  4. Step 4: Simplify right side
    82,405.63x = 3,683,879,149.74
  5. Step 5: Solve for x
    x = 3,683,879,149.74/82,405.63
  6. Step 6: Final answer
    x = 44,704.22

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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.