Home / 74,699.36-102,943.20-53,441.72

Finding the Fourth Proportional to 74,699.36, 102,943.20 and 53,441.72

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Solution

The fourth proportional to 74,699.36, 102,943.20 and 53,441.72 is: 73,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,699.36 : 102,943.20 = 53,441.72 : x
  2. Step 2: Convert to fraction form
    74,699.36/102,943.20 = 53,441.72/x
  3. Step 3: Cross multiply
    74,699.36x = 102,943.20 × 53,441.72
  4. Step 4: Simplify right side
    74,699.36x = 5,501,461,670.30
  5. Step 5: Solve for x
    x = 5,501,461,670.30/74,699.36
  6. Step 6: Final answer
    x = 73,648.04

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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.