Home / 98,072.43-135,295-64,071.87

Finding the Fourth Proportional to 98,072.43, 135,295 and 64,071.87

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Solution

The fourth proportional to 98,072.43, 135,295 and 64,071.87 is: 88,389.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,072.43 : 135,295 = 64,071.87 : x
  2. Step 2: Convert to fraction form
    98,072.43/135,295 = 64,071.87/x
  3. Step 3: Cross multiply
    98,072.43x = 135,295 × 64,071.87
  4. Step 4: Simplify right side
    98,072.43x = 8,668,603,651.65
  5. Step 5: Solve for x
    x = 8,668,603,651.65/98,072.43
  6. Step 6: Final answer
    x = 88,389.81

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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.