Home / 76,836.43-106,035.58-42,385.12

Finding the Fourth Proportional to 76,836.43, 106,035.58 and 42,385.12

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Solution

The fourth proportional to 76,836.43, 106,035.58 and 42,385.12 is: 58,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,836.43 : 106,035.58 = 42,385.12 : x
  2. Step 2: Convert to fraction form
    76,836.43/106,035.58 = 42,385.12/x
  3. Step 3: Cross multiply
    76,836.43x = 106,035.58 × 42,385.12
  4. Step 4: Simplify right side
    76,836.43x = 4,494,330,252.39
  5. Step 5: Solve for x
    x = 4,494,330,252.39/76,836.43
  6. Step 6: Final answer
    x = 58,492.18

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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.