Home / 65,928.28-90,977.16-39,073.36

Finding the Fourth Proportional to 65,928.28, 90,977.16 and 39,073.36

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Solution

The fourth proportional to 65,928.28, 90,977.16 and 39,073.36 is: 53,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,928.28 : 90,977.16 = 39,073.36 : x
  2. Step 2: Convert to fraction form
    65,928.28/90,977.16 = 39,073.36/x
  3. Step 3: Cross multiply
    65,928.28x = 90,977.16 × 39,073.36
  4. Step 4: Simplify right side
    65,928.28x = 3,554,783,324.46
  5. Step 5: Solve for x
    x = 3,554,783,324.46/65,928.28
  6. Step 6: Final answer
    x = 53,918.95

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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.