Home / 77,966.90-116,921.30-28,033.36

Finding the Fourth Proportional to 77,966.90, 116,921.30 and 28,033.36

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Solution

The fourth proportional to 77,966.90, 116,921.30 and 28,033.36 is: 42,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,966.90 : 116,921.30 = 28,033.36 : x
  2. Step 2: Convert to fraction form
    77,966.90/116,921.30 = 28,033.36/x
  3. Step 3: Cross multiply
    77,966.90x = 116,921.30 × 28,033.36
  4. Step 4: Simplify right side
    77,966.90x = 3,277,696,894.57
  5. Step 5: Solve for x
    x = 3,277,696,894.57/77,966.90
  6. Step 6: Final answer
    x = 42,039.59

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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.