Home / 48,447.06-72,656.55-18,858.30

Finding the Fourth Proportional to 48,447.06, 72,656.55 and 18,858.30

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Solution

The fourth proportional to 48,447.06, 72,656.55 and 18,858.30 is: 28,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,447.06 : 72,656.55 = 18,858.30 : x
  2. Step 2: Convert to fraction form
    48,447.06/72,656.55 = 18,858.30/x
  3. Step 3: Cross multiply
    48,447.06x = 72,656.55 × 18,858.30
  4. Step 4: Simplify right side
    48,447.06x = 1,370,179,016.87
  5. Step 5: Solve for x
    x = 1,370,179,016.87/48,447.06
  6. Step 6: Final answer
    x = 28,281.98

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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.