Home / 90,847.49-136,271.84-31,683.15

Finding the Fourth Proportional to 90,847.49, 136,271.84 and 31,683.15

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Solution

The fourth proportional to 90,847.49, 136,271.84 and 31,683.15 is: 47,524.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,847.49 : 136,271.84 = 31,683.15 : x
  2. Step 2: Convert to fraction form
    90,847.49/136,271.84 = 31,683.15/x
  3. Step 3: Cross multiply
    90,847.49x = 136,271.84 × 31,683.15
  4. Step 4: Simplify right side
    90,847.49x = 4,317,520,989.08
  5. Step 5: Solve for x
    x = 4,317,520,989.08/90,847.49
  6. Step 6: Final answer
    x = 47,524.94

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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.