Home / 75,048.56-103,558.20-43,218.80

Finding the Fourth Proportional to 75,048.56, 103,558.20 and 43,218.80

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Solution

The fourth proportional to 75,048.56, 103,558.20 and 43,218.80 is: 59,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,048.56 : 103,558.20 = 43,218.80 : x
  2. Step 2: Convert to fraction form
    75,048.56/103,558.20 = 43,218.80/x
  3. Step 3: Cross multiply
    75,048.56x = 103,558.20 × 43,218.80
  4. Step 4: Simplify right side
    75,048.56x = 4,475,661,134.16
  5. Step 5: Solve for x
    x = 4,475,661,134.16/75,048.56
  6. Step 6: Final answer
    x = 59,636.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.