Home / 48,723.90-72,999.45-30,234.30

Finding the Fourth Proportional to 48,723.90, 72,999.45 and 30,234.30

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Solution

The fourth proportional to 48,723.90, 72,999.45 and 30,234.30 is: 45,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,723.90 : 72,999.45 = 30,234.30 : x
  2. Step 2: Convert to fraction form
    48,723.90/72,999.45 = 30,234.30/x
  3. Step 3: Cross multiply
    48,723.90x = 72,999.45 × 30,234.30
  4. Step 4: Simplify right side
    48,723.90x = 2,207,087,271.14
  5. Step 5: Solve for x
    x = 2,207,087,271.14/48,723.90
  6. Step 6: Final answer
    x = 45,297.84

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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.