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Finding the Fourth Proportional to 75,509.11, 104,208 and 45,295.71

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Solution

The fourth proportional to 75,509.11, 104,208 and 45,295.71 is: 62,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,509.11 : 104,208 = 45,295.71 : x
  2. Step 2: Convert to fraction form
    75,509.11/104,208 = 45,295.71/x
  3. Step 3: Cross multiply
    75,509.11x = 104,208 × 45,295.71
  4. Step 4: Simplify right side
    75,509.11x = 4,720,175,347.68
  5. Step 5: Solve for x
    x = 4,720,175,347.68/75,509.11
  6. Step 6: Final answer
    x = 62,511.34

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1.5x scale

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.