Home / 77,965.05-116,946.53-18,800.25

Finding the Fourth Proportional to 77,965.05, 116,946.53 and 18,800.25

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Solution

The fourth proportional to 77,965.05, 116,946.53 and 18,800.25 is: 28,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,965.05 : 116,946.53 = 18,800.25 : x
  2. Step 2: Convert to fraction form
    77,965.05/116,946.53 = 18,800.25/x
  3. Step 3: Cross multiply
    77,965.05x = 116,946.53 × 18,800.25
  4. Step 4: Simplify right side
    77,965.05x = 2,198,624,000.63
  5. Step 5: Solve for x
    x = 2,198,624,000.63/77,965.05
  6. Step 6: Final answer
    x = 28,200.12

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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.