Home / 76,827.66-115,231.77-30,113.34

Finding the Fourth Proportional to 76,827.66, 115,231.77 and 30,113.34

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Solution

The fourth proportional to 76,827.66, 115,231.77 and 30,113.34 is: 45,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,827.66 : 115,231.77 = 30,113.34 : x
  2. Step 2: Convert to fraction form
    76,827.66/115,231.77 = 30,113.34/x
  3. Step 3: Cross multiply
    76,827.66x = 115,231.77 × 30,113.34
  4. Step 4: Simplify right side
    76,827.66x = 3,470,013,468.81
  5. Step 5: Solve for x
    x = 3,470,013,468.81/76,827.66
  6. Step 6: Final answer
    x = 45,166.20

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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.