Home / 82,277.78-123,416.24-19,948.28

Finding the Fourth Proportional to 82,277.78, 123,416.24 and 19,948.28

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Solution

The fourth proportional to 82,277.78, 123,416.24 and 19,948.28 is: 29,922.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,277.78 : 123,416.24 = 19,948.28 : x
  2. Step 2: Convert to fraction form
    82,277.78/123,416.24 = 19,948.28/x
  3. Step 3: Cross multiply
    82,277.78x = 123,416.24 × 19,948.28
  4. Step 4: Simplify right side
    82,277.78x = 2,461,941,712.07
  5. Step 5: Solve for x
    x = 2,461,941,712.07/82,277.78
  6. Step 6: Final answer
    x = 29,922.32

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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.