Home / 77,448.20-115,880.70-51,204.20

Finding the Fourth Proportional to 77,448.20, 115,880.70 and 51,204.20

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Solution

The fourth proportional to 77,448.20, 115,880.70 and 51,204.20 is: 76,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,448.20 : 115,880.70 = 51,204.20 : x
  2. Step 2: Convert to fraction form
    77,448.20/115,880.70 = 51,204.20/x
  3. Step 3: Cross multiply
    77,448.20x = 115,880.70 × 51,204.20
  4. Step 4: Simplify right side
    77,448.20x = 5,933,578,538.94
  5. Step 5: Solve for x
    x = 5,933,578,538.94/77,448.20
  6. Step 6: Final answer
    x = 76,613.51

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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.