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Finding the Fourth Proportional to 70,333.91, 105,500.90 and 30,891.36

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Solution

The fourth proportional to 70,333.91, 105,500.90 and 30,891.36 is: 46,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,333.91 : 105,500.90 = 30,891.36 : x
  2. Step 2: Convert to fraction form
    70,333.91/105,500.90 = 30,891.36/x
  3. Step 3: Cross multiply
    70,333.91x = 105,500.90 × 30,891.36
  4. Step 4: Simplify right side
    70,333.91x = 3,259,066,282.22
  5. Step 5: Solve for x
    x = 3,259,066,282.22/70,333.91
  6. Step 6: Final answer
    x = 46,337.06

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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.