Home / 99,611.08-137,409.84-63,762.52

Finding the Fourth Proportional to 99,611.08, 137,409.84 and 63,762.52

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Solution

The fourth proportional to 99,611.08, 137,409.84 and 63,762.52 is: 87,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,611.08 : 137,409.84 = 63,762.52 : x
  2. Step 2: Convert to fraction form
    99,611.08/137,409.84 = 63,762.52/x
  3. Step 3: Cross multiply
    99,611.08x = 137,409.84 × 63,762.52
  4. Step 4: Simplify right side
    99,611.08x = 8,761,597,671.20
  5. Step 5: Solve for x
    x = 8,761,597,671.20/99,611.08
  6. Step 6: Final answer
    x = 87,958.06

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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.