Home / 77,446.63-116,156.53-21,273.36

Finding the Fourth Proportional to 77,446.63, 116,156.53 and 21,273.36

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Solution

The fourth proportional to 77,446.63, 116,156.53 and 21,273.36 is: 31,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,446.63 : 116,156.53 = 21,273.36 : x
  2. Step 2: Convert to fraction form
    77,446.63/116,156.53 = 21,273.36/x
  3. Step 3: Cross multiply
    77,446.63x = 116,156.53 × 21,273.36
  4. Step 4: Simplify right side
    77,446.63x = 2,471,039,596.74
  5. Step 5: Solve for x
    x = 2,471,039,596.74/77,446.63
  6. Step 6: Final answer
    x = 31,906.35

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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.