Home / 89,060.45-122,986.68-57,284.51

Finding the Fourth Proportional to 89,060.45, 122,986.68 and 57,284.51

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Solution

The fourth proportional to 89,060.45, 122,986.68 and 57,284.51 is: 79,106.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,060.45 : 122,986.68 = 57,284.51 : x
  2. Step 2: Convert to fraction form
    89,060.45/122,986.68 = 57,284.51/x
  3. Step 3: Cross multiply
    89,060.45x = 122,986.68 × 57,284.51
  4. Step 4: Simplify right side
    89,060.45x = 7,045,231,700.33
  5. Step 5: Solve for x
    x = 7,045,231,700.33/89,060.45
  6. Step 6: Final answer
    x = 79,106.18

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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.