Home / 75,969.83-114,011.64-28,631.61

Finding the Fourth Proportional to 75,969.83, 114,011.64 and 28,631.61

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Solution

The fourth proportional to 75,969.83, 114,011.64 and 28,631.61 is: 42,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,969.83 : 114,011.64 = 28,631.61 : x
  2. Step 2: Convert to fraction form
    75,969.83/114,011.64 = 28,631.61/x
  3. Step 3: Cross multiply
    75,969.83x = 114,011.64 × 28,631.61
  4. Step 4: Simplify right side
    75,969.83x = 3,264,336,811.94
  5. Step 5: Solve for x
    x = 3,264,336,811.94/75,969.83
  6. Step 6: Final answer
    x = 42,968.86

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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.