Home / 89,219.99-123,127.03-48,935.45

Finding the Fourth Proportional to 89,219.99, 123,127.03 and 48,935.45

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Solution

The fourth proportional to 89,219.99, 123,127.03 and 48,935.45 is: 67,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,219.99 : 123,127.03 = 48,935.45 : x
  2. Step 2: Convert to fraction form
    89,219.99/123,127.03 = 48,935.45/x
  3. Step 3: Cross multiply
    89,219.99x = 123,127.03 × 48,935.45
  4. Step 4: Simplify right side
    89,219.99x = 6,025,276,620.21
  5. Step 5: Solve for x
    x = 6,025,276,620.21/89,219.99
  6. Step 6: Final answer
    x = 67,532.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.