Home / 81,461.32-122,211.06-25,298.56

Finding the Fourth Proportional to 81,461.32, 122,211.06 and 25,298.56

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Solution

The fourth proportional to 81,461.32, 122,211.06 and 25,298.56 is: 37,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,461.32 : 122,211.06 = 25,298.56 : x
  2. Step 2: Convert to fraction form
    81,461.32/122,211.06 = 25,298.56/x
  3. Step 3: Cross multiply
    81,461.32x = 122,211.06 × 25,298.56
  4. Step 4: Simplify right side
    81,461.32x = 3,091,763,834.07
  5. Step 5: Solve for x
    x = 3,091,763,834.07/81,461.32
  6. Step 6: Final answer
    x = 37,953.77

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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.