Home / 76,925.68-115,309.32-55,813.12

Finding the Fourth Proportional to 76,925.68, 115,309.32 and 55,813.12

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Solution

The fourth proportional to 76,925.68, 115,309.32 and 55,813.12 is: 83,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,925.68 : 115,309.32 = 55,813.12 : x
  2. Step 2: Convert to fraction form
    76,925.68/115,309.32 = 55,813.12/x
  3. Step 3: Cross multiply
    76,925.68x = 115,309.32 × 55,813.12
  4. Step 4: Simplify right side
    76,925.68x = 6,435,772,914.28
  5. Step 5: Solve for x
    x = 6,435,772,914.28/76,925.68
  6. Step 6: Final answer
    x = 83,662.22

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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.