Home / 76,262.42-105,245.66-42,271.64

Finding the Fourth Proportional to 76,262.42, 105,245.66 and 42,271.64

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Solution

The fourth proportional to 76,262.42, 105,245.66 and 42,271.64 is: 58,336.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,262.42 : 105,245.66 = 42,271.64 : x
  2. Step 2: Convert to fraction form
    76,262.42/105,245.66 = 42,271.64/x
  3. Step 3: Cross multiply
    76,262.42x = 105,245.66 × 42,271.64
  4. Step 4: Simplify right side
    76,262.42x = 4,448,906,625.20
  5. Step 5: Solve for x
    x = 4,448,906,625.20/76,262.42
  6. Step 6: Final answer
    x = 58,336.81

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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.