Home / 76,634.16-114,951.08-21,230

Finding the Fourth Proportional to 76,634.16, 114,951.08 and 21,230

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Solution

The fourth proportional to 76,634.16, 114,951.08 and 21,230 is: 31,844.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,634.16 : 114,951.08 = 21,230 : x
  2. Step 2: Convert to fraction form
    76,634.16/114,951.08 = 21,230/x
  3. Step 3: Cross multiply
    76,634.16x = 114,951.08 × 21,230
  4. Step 4: Simplify right side
    76,634.16x = 2,440,411,428.40
  5. Step 5: Solve for x
    x = 2,440,411,428.40/76,634.16
  6. Step 6: Final answer
    x = 31,844.96

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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.