Home / 77,976.16-116,964.18-25,385.62

Finding the Fourth Proportional to 77,976.16, 116,964.18 and 25,385.62

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Solution

The fourth proportional to 77,976.16, 116,964.18 and 25,385.62 is: 38,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976.16 : 116,964.18 = 25,385.62 : x
  2. Step 2: Convert to fraction form
    77,976.16/116,964.18 = 25,385.62/x
  3. Step 3: Cross multiply
    77,976.16x = 116,964.18 × 25,385.62
  4. Step 4: Simplify right side
    77,976.16x = 2,969,208,227.09
  5. Step 5: Solve for x
    x = 2,969,208,227.09/77,976.16
  6. Step 6: Final answer
    x = 38,078.41

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1.5x scale

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.