Home / 68,634.09-102,783.47-42,302.61

Finding the Fourth Proportional to 68,634.09, 102,783.47 and 42,302.61

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Solution

The fourth proportional to 68,634.09, 102,783.47 and 42,302.61 is: 63,350.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,634.09 : 102,783.47 = 42,302.61 : x
  2. Step 2: Convert to fraction form
    68,634.09/102,783.47 = 42,302.61/x
  3. Step 3: Cross multiply
    68,634.09x = 102,783.47 × 42,302.61
  4. Step 4: Simplify right side
    68,634.09x = 4,348,008,834.34
  5. Step 5: Solve for x
    x = 4,348,008,834.34/68,634.09
  6. Step 6: Final answer
    x = 63,350.57

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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.