Home / 43,172.28-64,762.07-12,007.53

Finding the Fourth Proportional to 43,172.28, 64,762.07 and 12,007.53

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Solution

The fourth proportional to 43,172.28, 64,762.07 and 12,007.53 is: 18,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,172.28 : 64,762.07 = 12,007.53 : x
  2. Step 2: Convert to fraction form
    43,172.28/64,762.07 = 12,007.53/x
  3. Step 3: Cross multiply
    43,172.28x = 64,762.07 × 12,007.53
  4. Step 4: Simplify right side
    43,172.28x = 777,632,630.27
  5. Step 5: Solve for x
    x = 777,632,630.27/43,172.28
  6. Step 6: Final answer
    x = 18,012.31

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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.