Home / 58,405.05-80,549.33-49,374.45

Finding the Fourth Proportional to 58,405.05, 80,549.33 and 49,374.45

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Solution

The fourth proportional to 58,405.05, 80,549.33 and 49,374.45 is: 68,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,405.05 : 80,549.33 = 49,374.45 : x
  2. Step 2: Convert to fraction form
    58,405.05/80,549.33 = 49,374.45/x
  3. Step 3: Cross multiply
    58,405.05x = 80,549.33 × 49,374.45
  4. Step 4: Simplify right side
    58,405.05x = 3,977,078,619.75
  5. Step 5: Solve for x
    x = 3,977,078,619.75/58,405.05
  6. Step 6: Final answer
    x = 68,094.77

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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.