Home / 75,117.37-103,661.74-43,286.20

Finding the Fourth Proportional to 75,117.37, 103,661.74 and 43,286.20

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Solution

The fourth proportional to 75,117.37, 103,661.74 and 43,286.20 is: 59,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,117.37 : 103,661.74 = 43,286.20 : x
  2. Step 2: Convert to fraction form
    75,117.37/103,661.74 = 43,286.20/x
  3. Step 3: Cross multiply
    75,117.37x = 103,661.74 × 43,286.20
  4. Step 4: Simplify right side
    75,117.37x = 4,487,122,809.99
  5. Step 5: Solve for x
    x = 4,487,122,809.99/75,117.37
  6. Step 6: Final answer
    x = 59,734.82

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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.