Home / 76,386.96-114,585.96-31,969.02

Finding the Fourth Proportional to 76,386.96, 114,585.96 and 31,969.02

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Solution

The fourth proportional to 76,386.96, 114,585.96 and 31,969.02 is: 47,955.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,386.96 : 114,585.96 = 31,969.02 : x
  2. Step 2: Convert to fraction form
    76,386.96/114,585.96 = 31,969.02/x
  3. Step 3: Cross multiply
    76,386.96x = 114,585.96 × 31,969.02
  4. Step 4: Simplify right side
    76,386.96x = 3,663,200,846.96
  5. Step 5: Solve for x
    x = 3,663,200,846.96/76,386.96
  6. Step 6: Final answer
    x = 47,955.84

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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.