Home / 66,225.12-91,424.53-51,083.79

Finding the Fourth Proportional to 66,225.12, 91,424.53 and 51,083.79

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Solution

The fourth proportional to 66,225.12, 91,424.53 and 51,083.79 is: 70,521.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.12 : 91,424.53 = 51,083.79 : x
  2. Step 2: Convert to fraction form
    66,225.12/91,424.53 = 51,083.79/x
  3. Step 3: Cross multiply
    66,225.12x = 91,424.53 × 51,083.79
  4. Step 4: Simplify right side
    66,225.12x = 4,670,311,491.37
  5. Step 5: Solve for x
    x = 4,670,311,491.37/66,225.12
  6. Step 6: Final answer
    x = 70,521.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.