Home / 77,145.60-115,735.32-32,810.28

Finding the Fourth Proportional to 77,145.60, 115,735.32 and 32,810.28

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Solution

The fourth proportional to 77,145.60, 115,735.32 and 32,810.28 is: 49,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,145.60 : 115,735.32 = 32,810.28 : x
  2. Step 2: Convert to fraction form
    77,145.60/115,735.32 = 32,810.28/x
  3. Step 3: Cross multiply
    77,145.60x = 115,735.32 × 32,810.28
  4. Step 4: Simplify right side
    77,145.60x = 3,797,308,255.09
  5. Step 5: Solve for x
    x = 3,797,308,255.09/77,145.60
  6. Step 6: Final answer
    x = 49,222.62

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1.5x scale

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.