Home / 68,225.40-102,294.09-28,771.92

Finding the Fourth Proportional to 68,225.40, 102,294.09 and 28,771.92

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Solution

The fourth proportional to 68,225.40, 102,294.09 and 28,771.92 is: 43,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,225.40 : 102,294.09 = 28,771.92 : x
  2. Step 2: Convert to fraction form
    68,225.40/102,294.09 = 28,771.92/x
  3. Step 3: Cross multiply
    68,225.40x = 102,294.09 × 28,771.92
  4. Step 4: Simplify right side
    68,225.40x = 2,943,197,373.95
  5. Step 5: Solve for x
    x = 2,943,197,373.95/68,225.40
  6. Step 6: Final answer
    x = 43,139.32

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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.