Home / 70,329.69-105,421.62-43,973.91

Finding the Fourth Proportional to 70,329.69, 105,421.62 and 43,973.91

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Solution

The fourth proportional to 70,329.69, 105,421.62 and 43,973.91 is: 65,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,329.69 : 105,421.62 = 43,973.91 : x
  2. Step 2: Convert to fraction form
    70,329.69/105,421.62 = 43,973.91/x
  3. Step 3: Cross multiply
    70,329.69x = 105,421.62 × 43,973.91
  4. Step 4: Simplify right side
    70,329.69x = 4,635,800,829.93
  5. Step 5: Solve for x
    x = 4,635,800,829.93/70,329.69
  6. Step 6: Final answer
    x = 65,915.27

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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.