Home / 76,973.74-115,431.23-36,981.64

Finding the Fourth Proportional to 76,973.74, 115,431.23 and 36,981.64

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Solution

The fourth proportional to 76,973.74, 115,431.23 and 36,981.64 is: 55,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,973.74 : 115,431.23 = 36,981.64 : x
  2. Step 2: Convert to fraction form
    76,973.74/115,431.23 = 36,981.64/x
  3. Step 3: Cross multiply
    76,973.74x = 115,431.23 × 36,981.64
  4. Step 4: Simplify right side
    76,973.74x = 4,268,835,896.69
  5. Step 5: Solve for x
    x = 4,268,835,896.69/76,973.74
  6. Step 6: Final answer
    x = 55,458.34

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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.