Home / 70,631.04-105,933.44-20,700.16

Finding the Fourth Proportional to 70,631.04, 105,933.44 and 20,700.16

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Solution

The fourth proportional to 70,631.04, 105,933.44 and 20,700.16 is: 31,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,631.04 : 105,933.44 = 20,700.16 : x
  2. Step 2: Convert to fraction form
    70,631.04/105,933.44 = 20,700.16/x
  3. Step 3: Cross multiply
    70,631.04x = 105,933.44 × 20,700.16
  4. Step 4: Simplify right side
    70,631.04x = 2,192,839,157.35
  5. Step 5: Solve for x
    x = 2,192,839,157.35/70,631.04
  6. Step 6: Final answer
    x = 31,046.39

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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.