Home / 51,983.80-77,975.70-51,206.20

Finding the Fourth Proportional to 51,983.80, 77,975.70 and 51,206.20

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Solution

The fourth proportional to 51,983.80, 77,975.70 and 51,206.20 is: 76,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,983.80 : 77,975.70 = 51,206.20 : x
  2. Step 2: Convert to fraction form
    51,983.80/77,975.70 = 51,206.20/x
  3. Step 3: Cross multiply
    51,983.80x = 77,975.70 × 51,206.20
  4. Step 4: Simplify right side
    51,983.80x = 3,992,839,289.34
  5. Step 5: Solve for x
    x = 3,992,839,289.34/51,983.80
  6. Step 6: Final answer
    x = 76,809.30

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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.