Home / 72,829.90-100,492.73-66,943.88

Finding the Fourth Proportional to 72,829.90, 100,492.73 and 66,943.88

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Solution

The fourth proportional to 72,829.90, 100,492.73 and 66,943.88 is: 92,371.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,829.90 : 100,492.73 = 66,943.88 : x
  2. Step 2: Convert to fraction form
    72,829.90/100,492.73 = 66,943.88/x
  3. Step 3: Cross multiply
    72,829.90x = 100,492.73 × 66,943.88
  4. Step 4: Simplify right side
    72,829.90x = 6,727,373,257.99
  5. Step 5: Solve for x
    x = 6,727,373,257.99/72,829.90
  6. Step 6: Final answer
    x = 92,371.04

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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.