Home / 74,300.45-102,509.64-42,446.79

Finding the Fourth Proportional to 74,300.45, 102,509.64 and 42,446.79

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Solution

The fourth proportional to 74,300.45, 102,509.64 and 42,446.79 is: 58,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,300.45 : 102,509.64 = 42,446.79 : x
  2. Step 2: Convert to fraction form
    74,300.45/102,509.64 = 42,446.79/x
  3. Step 3: Cross multiply
    74,300.45x = 102,509.64 × 42,446.79
  4. Step 4: Simplify right side
    74,300.45x = 4,351,205,162.06
  5. Step 5: Solve for x
    x = 4,351,205,162.06/74,300.45
  6. Step 6: Final answer
    x = 58,562.30

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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.