Home / 112,421.75-168,632.62-31,365.60

Finding the Fourth Proportional to 112,421.75, 168,632.62 and 31,365.60

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Solution

The fourth proportional to 112,421.75, 168,632.62 and 31,365.60 is: 47,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,421.75 : 168,632.62 = 31,365.60 : x
  2. Step 2: Convert to fraction form
    112,421.75/168,632.62 = 31,365.60/x
  3. Step 3: Cross multiply
    112,421.75x = 168,632.62 × 31,365.60
  4. Step 4: Simplify right side
    112,421.75x = 5,289,263,305.87
  5. Step 5: Solve for x
    x = 5,289,263,305.87/112,421.75
  6. Step 6: Final answer
    x = 47,048.40

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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.