Home / 74,973.78-112,581.15-49,712.31

Finding the Fourth Proportional to 74,973.78, 112,581.15 and 49,712.31

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Solution

The fourth proportional to 74,973.78, 112,581.15 and 49,712.31 is: 74,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,973.78 : 112,581.15 = 49,712.31 : x
  2. Step 2: Convert to fraction form
    74,973.78/112,581.15 = 49,712.31/x
  3. Step 3: Cross multiply
    74,973.78x = 112,581.15 × 49,712.31
  4. Step 4: Simplify right side
    74,973.78x = 5,596,669,028.96
  5. Step 5: Solve for x
    x = 5,596,669,028.96/74,973.78
  6. Step 6: Final answer
    x = 74,648.35

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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.