Home / 75,684.90-113,533.56-31,303.38

Finding the Fourth Proportional to 75,684.90, 113,533.56 and 31,303.38

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Solution

The fourth proportional to 75,684.90, 113,533.56 and 31,303.38 is: 46,957.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,684.90 : 113,533.56 = 31,303.38 : x
  2. Step 2: Convert to fraction form
    75,684.90/113,533.56 = 31,303.38/x
  3. Step 3: Cross multiply
    75,684.90x = 113,533.56 × 31,303.38
  4. Step 4: Simplify right side
    75,684.90x = 3,553,984,171.43
  5. Step 5: Solve for x
    x = 3,553,984,171.43/75,684.90
  6. Step 6: Final answer
    x = 46,957.64

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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.