Home / 66,403.20-99,489.60-43,017.60

Finding the Fourth Proportional to 66,403.20, 99,489.60 and 43,017.60

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Solution

The fourth proportional to 66,403.20, 99,489.60 and 43,017.60 is: 64,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,403.20 : 99,489.60 = 43,017.60 : x
  2. Step 2: Convert to fraction form
    66,403.20/99,489.60 = 43,017.60/x
  3. Step 3: Cross multiply
    66,403.20x = 99,489.60 × 43,017.60
  4. Step 4: Simplify right side
    66,403.20x = 4,279,803,816.96
  5. Step 5: Solve for x
    x = 4,279,803,816.96/66,403.20
  6. Step 6: Final answer
    x = 64,451.77

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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.