Home / 81,798.16-122,644.68-34,444.12

Finding the Fourth Proportional to 81,798.16, 122,644.68 and 34,444.12

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Solution

The fourth proportional to 81,798.16, 122,644.68 and 34,444.12 is: 51,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,798.16 : 122,644.68 = 34,444.12 : x
  2. Step 2: Convert to fraction form
    81,798.16/122,644.68 = 34,444.12/x
  3. Step 3: Cross multiply
    81,798.16x = 122,644.68 × 34,444.12
  4. Step 4: Simplify right side
    81,798.16x = 4,224,388,075.28
  5. Step 5: Solve for x
    x = 4,224,388,075.28/81,798.16
  6. Step 6: Final answer
    x = 51,644.05

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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.