Home / 68,974.12-103,501.10-28,989.95

Finding the Fourth Proportional to 68,974.12, 103,501.10 and 28,989.95

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Solution

The fourth proportional to 68,974.12, 103,501.10 and 28,989.95 is: 43,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,974.12 : 103,501.10 = 28,989.95 : x
  2. Step 2: Convert to fraction form
    68,974.12/103,501.10 = 28,989.95/x
  3. Step 3: Cross multiply
    68,974.12x = 103,501.10 × 28,989.95
  4. Step 4: Simplify right side
    68,974.12x = 3,000,492,045.17
  5. Step 5: Solve for x
    x = 3,000,492,045.17/68,974.12
  6. Step 6: Final answer
    x = 43,501.71

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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.