Home / 77,976.76-116,965.15-30,614.19

Finding the Fourth Proportional to 77,976.76, 116,965.15 and 30,614.19

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Solution

The fourth proportional to 77,976.76, 116,965.15 and 30,614.19 is: 45,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,976.76 : 116,965.15 = 30,614.19 : x
  2. Step 2: Convert to fraction form
    77,976.76/116,965.15 = 30,614.19/x
  3. Step 3: Cross multiply
    77,976.76x = 116,965.15 × 30,614.19
  4. Step 4: Simplify right side
    77,976.76x = 3,580,792,810.32
  5. Step 5: Solve for x
    x = 3,580,792,810.32/77,976.76
  6. Step 6: Final answer
    x = 45,921.28

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Similar ratio
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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.