Home / 60,441.30-90,640.35-20,999.70

Finding the Fourth Proportional to 60,441.30, 90,640.35 and 20,999.70

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Solution

The fourth proportional to 60,441.30, 90,640.35 and 20,999.70 is: 31,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,441.30 : 90,640.35 = 20,999.70 : x
  2. Step 2: Convert to fraction form
    60,441.30/90,640.35 = 20,999.70/x
  3. Step 3: Cross multiply
    60,441.30x = 90,640.35 × 20,999.70
  4. Step 4: Simplify right side
    60,441.30x = 1,903,420,157.90
  5. Step 5: Solve for x
    x = 1,903,420,157.90/60,441.30
  6. Step 6: Final answer
    x = 31,492.05

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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.