Home / 77,967.18-116,943.48-21,812.34

Finding the Fourth Proportional to 77,967.18, 116,943.48 and 21,812.34

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Solution

The fourth proportional to 77,967.18, 116,943.48 and 21,812.34 is: 32,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,967.18 : 116,943.48 = 21,812.34 : x
  2. Step 2: Convert to fraction form
    77,967.18/116,943.48 = 21,812.34/x
  3. Step 3: Cross multiply
    77,967.18x = 116,943.48 × 21,812.34
  4. Step 4: Simplify right side
    77,967.18x = 2,550,810,946.54
  5. Step 5: Solve for x
    x = 2,550,810,946.54/77,967.18
  6. Step 6: Final answer
    x = 32,716.47

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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.