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Finding the Fourth Proportional to 71,795.87, 99,108.93 and 51,112.70

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Solution

The fourth proportional to 71,795.87, 99,108.93 and 51,112.70 is: 70,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,795.87 : 99,108.93 = 51,112.70 : x
  2. Step 2: Convert to fraction form
    71,795.87/99,108.93 = 51,112.70/x
  3. Step 3: Cross multiply
    71,795.87x = 99,108.93 × 51,112.70
  4. Step 4: Simplify right side
    71,795.87x = 5,065,725,006.41
  5. Step 5: Solve for x
    x = 5,065,725,006.41/71,795.87
  6. Step 6: Final answer
    x = 70,557.33

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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.