Home / 67,077.20-100,615.80-43,457.60

Finding the Fourth Proportional to 67,077.20, 100,615.80 and 43,457.60

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Solution

The fourth proportional to 67,077.20, 100,615.80 and 43,457.60 is: 65,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,077.20 : 100,615.80 = 43,457.60 : x
  2. Step 2: Convert to fraction form
    67,077.20/100,615.80 = 43,457.60/x
  3. Step 3: Cross multiply
    67,077.20x = 100,615.80 × 43,457.60
  4. Step 4: Simplify right side
    67,077.20x = 4,372,521,190.08
  5. Step 5: Solve for x
    x = 4,372,521,190.08/67,077.20
  6. Step 6: Final answer
    x = 65,186.40

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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.