Home / 90,919.67-136,379.23-40,941.25

Finding the Fourth Proportional to 90,919.67, 136,379.23 and 40,941.25

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Solution

The fourth proportional to 90,919.67, 136,379.23 and 40,941.25 is: 61,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,919.67 : 136,379.23 = 40,941.25 : x
  2. Step 2: Convert to fraction form
    90,919.67/136,379.23 = 40,941.25/x
  3. Step 3: Cross multiply
    90,919.67x = 136,379.23 × 40,941.25
  4. Step 4: Simplify right side
    90,919.67x = 5,583,535,706.94
  5. Step 5: Solve for x
    x = 5,583,535,706.94/90,919.67
  6. Step 6: Final answer
    x = 61,411.75

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1.5x scale

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.