Home / 65,924.28-90,971.64-39,069.36

Finding the Fourth Proportional to 65,924.28, 90,971.64 and 39,069.36

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Solution

The fourth proportional to 65,924.28, 90,971.64 and 39,069.36 is: 53,913.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,924.28 : 90,971.64 = 39,069.36 : x
  2. Step 2: Convert to fraction form
    65,924.28/90,971.64 = 39,069.36/x
  3. Step 3: Cross multiply
    65,924.28x = 90,971.64 × 39,069.36
  4. Step 4: Simplify right side
    65,924.28x = 3,554,203,752.95
  5. Step 5: Solve for x
    x = 3,554,203,752.95/65,924.28
  6. Step 6: Final answer
    x = 53,913.43

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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.