Home / 86,620.56-129,973.94-48,646.28

Finding the Fourth Proportional to 86,620.56, 129,973.94 and 48,646.28

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Solution

The fourth proportional to 86,620.56, 129,973.94 and 48,646.28 is: 72,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,620.56 : 129,973.94 = 48,646.28 : x
  2. Step 2: Convert to fraction form
    86,620.56/129,973.94 = 48,646.28/x
  3. Step 3: Cross multiply
    86,620.56x = 129,973.94 × 48,646.28
  4. Step 4: Simplify right side
    86,620.56x = 6,322,747,784.84
  5. Step 5: Solve for x
    x = 6,322,747,784.84/86,620.56
  6. Step 6: Final answer
    x = 72,993.61

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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.