Home / 76,072.80-114,128.64-29,313.12

Finding the Fourth Proportional to 76,072.80, 114,128.64 and 29,313.12

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Solution

The fourth proportional to 76,072.80, 114,128.64 and 29,313.12 is: 43,977.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,072.80 : 114,128.64 = 29,313.12 : x
  2. Step 2: Convert to fraction form
    76,072.80/114,128.64 = 29,313.12/x
  3. Step 3: Cross multiply
    76,072.80x = 114,128.64 × 29,313.12
  4. Step 4: Simplify right side
    76,072.80x = 3,345,466,519.76
  5. Step 5: Solve for x
    x = 3,345,466,519.76/76,072.80
  6. Step 6: Final answer
    x = 43,977.17

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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.