Home / 96,821.86-145,289.63-40,657.64

Finding the Fourth Proportional to 96,821.86, 145,289.63 and 40,657.64

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Solution

The fourth proportional to 96,821.86, 145,289.63 and 40,657.64 is: 61,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,821.86 : 145,289.63 = 40,657.64 : x
  2. Step 2: Convert to fraction form
    96,821.86/145,289.63 = 40,657.64/x
  3. Step 3: Cross multiply
    96,821.86x = 145,289.63 × 40,657.64
  4. Step 4: Simplify right side
    96,821.86x = 5,907,133,472.27
  5. Step 5: Solve for x
    x = 5,907,133,472.27/96,821.86
  6. Step 6: Final answer
    x = 61,010.33

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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.