Home / 43,133.50-64,703.90-11,968.75

Finding the Fourth Proportional to 43,133.50, 64,703.90 and 11,968.75

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Solution

The fourth proportional to 43,133.50, 64,703.90 and 11,968.75 is: 17,954.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,133.50 : 64,703.90 = 11,968.75 : x
  2. Step 2: Convert to fraction form
    43,133.50/64,703.90 = 11,968.75/x
  3. Step 3: Cross multiply
    43,133.50x = 64,703.90 × 11,968.75
  4. Step 4: Simplify right side
    43,133.50x = 774,424,803.13
  5. Step 5: Solve for x
    x = 774,424,803.13/43,133.50
  6. Step 6: Final answer
    x = 17,954.14

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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.