Home / 67,852.32-101,795.84-21,105.60

Finding the Fourth Proportional to 67,852.32, 101,795.84 and 21,105.60

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Solution

The fourth proportional to 67,852.32, 101,795.84 and 21,105.60 is: 31,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,852.32 : 101,795.84 = 21,105.60 : x
  2. Step 2: Convert to fraction form
    67,852.32/101,795.84 = 21,105.60/x
  3. Step 3: Cross multiply
    67,852.32x = 101,795.84 × 21,105.60
  4. Step 4: Simplify right side
    67,852.32x = 2,148,462,280.70
  5. Step 5: Solve for x
    x = 2,148,462,280.70/67,852.32
  6. Step 6: Final answer
    x = 31,663.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.