Home / 74,962.77-103,438.60-48,141.60

Finding the Fourth Proportional to 74,962.77, 103,438.60 and 48,141.60

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Solution

The fourth proportional to 74,962.77, 103,438.60 and 48,141.60 is: 66,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,962.77 : 103,438.60 = 48,141.60 : x
  2. Step 2: Convert to fraction form
    74,962.77/103,438.60 = 48,141.60/x
  3. Step 3: Cross multiply
    74,962.77x = 103,438.60 × 48,141.60
  4. Step 4: Simplify right side
    74,962.77x = 4,979,699,705.76
  5. Step 5: Solve for x
    x = 4,979,699,705.76/74,962.77
  6. Step 6: Final answer
    x = 66,428.97

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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.