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Finding the Fourth Proportional to 43,999.60, 65,999.46 and 10,719.46

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Solution

The fourth proportional to 43,999.60, 65,999.46 and 10,719.46 is: 16,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999.60 : 65,999.46 = 10,719.46 : x
  2. Step 2: Convert to fraction form
    43,999.60/65,999.46 = 10,719.46/x
  3. Step 3: Cross multiply
    43,999.60x = 65,999.46 × 10,719.46
  4. Step 4: Simplify right side
    43,999.60x = 707,478,571.49
  5. Step 5: Solve for x
    x = 707,478,571.49/43,999.60
  6. Step 6: Final answer
    x = 16,079.20

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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.