Home / 77,556.28-116,313.12-21,383.20

Finding the Fourth Proportional to 77,556.28, 116,313.12 and 21,383.20

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Solution

The fourth proportional to 77,556.28, 116,313.12 and 21,383.20 is: 32,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,556.28 : 116,313.12 = 21,383.20 : x
  2. Step 2: Convert to fraction form
    77,556.28/116,313.12 = 21,383.20/x
  3. Step 3: Cross multiply
    77,556.28x = 116,313.12 × 21,383.20
  4. Step 4: Simplify right side
    77,556.28x = 2,487,146,707.58
  5. Step 5: Solve for x
    x = 2,487,146,707.58/77,556.28
  6. Step 6: Final answer
    x = 32,068.93

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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.