Home / 74,367.36-102,680.28-45,725.49

Finding the Fourth Proportional to 74,367.36, 102,680.28 and 45,725.49

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Solution

The fourth proportional to 74,367.36, 102,680.28 and 45,725.49 is: 63,133.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,367.36 : 102,680.28 = 45,725.49 : x
  2. Step 2: Convert to fraction form
    74,367.36/102,680.28 = 45,725.49/x
  3. Step 3: Cross multiply
    74,367.36x = 102,680.28 × 45,725.49
  4. Step 4: Simplify right side
    74,367.36x = 4,695,106,116.34
  5. Step 5: Solve for x
    x = 4,695,106,116.34/74,367.36
  6. Step 6: Final answer
    x = 63,133.96

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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.