Home / 49,139.20-73,708.80-45,337.60

Finding the Fourth Proportional to 49,139.20, 73,708.80 and 45,337.60

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Solution

The fourth proportional to 49,139.20, 73,708.80 and 45,337.60 is: 68,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,139.20 : 73,708.80 = 45,337.60 : x
  2. Step 2: Convert to fraction form
    49,139.20/73,708.80 = 45,337.60/x
  3. Step 3: Cross multiply
    49,139.20x = 73,708.80 × 45,337.60
  4. Step 4: Simplify right side
    49,139.20x = 3,341,780,090.88
  5. Step 5: Solve for x
    x = 3,341,780,090.88/49,139.20
  6. Step 6: Final answer
    x = 68,006.40

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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.