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Finding the Fourth Proportional to 82,874.70, 124,312.05 and 30,277.35

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Solution

The fourth proportional to 82,874.70, 124,312.05 and 30,277.35 is: 45,416.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,874.70 : 124,312.05 = 30,277.35 : x
  2. Step 2: Convert to fraction form
    82,874.70/124,312.05 = 30,277.35/x
  3. Step 3: Cross multiply
    82,874.70x = 124,312.05 × 30,277.35
  4. Step 4: Simplify right side
    82,874.70x = 3,763,839,447.07
  5. Step 5: Solve for x
    x = 3,763,839,447.07/82,874.70
  6. Step 6: Final answer
    x = 45,416.03

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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.