Home / 81,895.46-122,860.80-48,576.51

Finding the Fourth Proportional to 81,895.46, 122,860.80 and 48,576.51

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Solution

The fourth proportional to 81,895.46, 122,860.80 and 48,576.51 is: 72,875.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,895.46 : 122,860.80 = 48,576.51 : x
  2. Step 2: Convert to fraction form
    81,895.46/122,860.80 = 48,576.51/x
  3. Step 3: Cross multiply
    81,895.46x = 122,860.80 × 48,576.51
  4. Step 4: Simplify right side
    81,895.46x = 5,968,148,879.81
  5. Step 5: Solve for x
    x = 5,968,148,879.81/81,895.46
  6. Step 6: Final answer
    x = 72,875.21

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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.