Home / 68,315.28-102,477.78-21,567.75

Finding the Fourth Proportional to 68,315.28, 102,477.78 and 21,567.75

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Solution

The fourth proportional to 68,315.28, 102,477.78 and 21,567.75 is: 32,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,315.28 : 102,477.78 = 21,567.75 : x
  2. Step 2: Convert to fraction form
    68,315.28/102,477.78 = 21,567.75/x
  3. Step 3: Cross multiply
    68,315.28x = 102,477.78 × 21,567.75
  4. Step 4: Simplify right side
    68,315.28x = 2,210,215,139.60
  5. Step 5: Solve for x
    x = 2,210,215,139.60/68,315.28
  6. Step 6: Final answer
    x = 32,353.16

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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.