Home / 81,466.35-122,172.12-36,459.51

Finding the Fourth Proportional to 81,466.35, 122,172.12 and 36,459.51

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Solution

The fourth proportional to 81,466.35, 122,172.12 and 36,459.51 is: 54,677.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,466.35 : 122,172.12 = 36,459.51 : x
  2. Step 2: Convert to fraction form
    81,466.35/122,172.12 = 36,459.51/x
  3. Step 3: Cross multiply
    81,466.35x = 122,172.12 × 36,459.51
  4. Step 4: Simplify right side
    81,466.35x = 4,454,335,630.86
  5. Step 5: Solve for x
    x = 4,454,335,630.86/81,466.35
  6. Step 6: Final answer
    x = 54,677.00

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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.