Home / 88,136.87-121,636.41-49,903.16

Finding the Fourth Proportional to 88,136.87, 121,636.41 and 49,903.16

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Solution

The fourth proportional to 88,136.87, 121,636.41 and 49,903.16 is: 68,870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,136.87 : 121,636.41 = 49,903.16 : x
  2. Step 2: Convert to fraction form
    88,136.87/121,636.41 = 49,903.16/x
  3. Step 3: Cross multiply
    88,136.87x = 121,636.41 × 49,903.16
  4. Step 4: Simplify right side
    88,136.87x = 6,070,040,715.44
  5. Step 5: Solve for x
    x = 6,070,040,715.44/88,136.87
  6. Step 6: Final answer
    x = 68,870.62

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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.