Home / 70,639.59-105,942.96-26,287.23

Finding the Fourth Proportional to 70,639.59, 105,942.96 and 26,287.23

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Solution

The fourth proportional to 70,639.59, 105,942.96 and 26,287.23 is: 39,424.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,639.59 : 105,942.96 = 26,287.23 : x
  2. Step 2: Convert to fraction form
    70,639.59/105,942.96 = 26,287.23/x
  3. Step 3: Cross multiply
    70,639.59x = 105,942.96 × 26,287.23
  4. Step 4: Simplify right side
    70,639.59x = 2,784,946,956.40
  5. Step 5: Solve for x
    x = 2,784,946,956.40/70,639.59
  6. Step 6: Final answer
    x = 39,424.73

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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.