Home / 65,982.28-91,051.68-39,127.36

Finding the Fourth Proportional to 65,982.28, 91,051.68 and 39,127.36

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Solution

The fourth proportional to 65,982.28, 91,051.68 and 39,127.36 is: 53,993.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,982.28 : 91,051.68 = 39,127.36 : x
  2. Step 2: Convert to fraction form
    65,982.28/91,051.68 = 39,127.36/x
  3. Step 3: Cross multiply
    65,982.28x = 91,051.68 × 39,127.36
  4. Step 4: Simplify right side
    65,982.28x = 3,562,611,861.96
  5. Step 5: Solve for x
    x = 3,562,611,861.96/65,982.28
  6. Step 6: Final answer
    x = 53,993.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.