Home / 74,315.84-102,591.12-47,105.50

Finding the Fourth Proportional to 74,315.84, 102,591.12 and 47,105.50

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Solution

The fourth proportional to 74,315.84, 102,591.12 and 47,105.50 is: 65,027.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,315.84 : 102,591.12 = 47,105.50 : x
  2. Step 2: Convert to fraction form
    74,315.84/102,591.12 = 47,105.50/x
  3. Step 3: Cross multiply
    74,315.84x = 102,591.12 × 47,105.50
  4. Step 4: Simplify right side
    74,315.84x = 4,832,606,003.16
  5. Step 5: Solve for x
    x = 4,832,606,003.16/74,315.84
  6. Step 6: Final answer
    x = 65,027.94

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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.