Home / 48,343.64-72,509.99-18,782.69

Finding the Fourth Proportional to 48,343.64, 72,509.99 and 18,782.69

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Solution

The fourth proportional to 48,343.64, 72,509.99 and 18,782.69 is: 28,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,343.64 : 72,509.99 = 18,782.69 : x
  2. Step 2: Convert to fraction form
    48,343.64/72,509.99 = 18,782.69/x
  3. Step 3: Cross multiply
    48,343.64x = 72,509.99 × 18,782.69
  4. Step 4: Simplify right side
    48,343.64x = 1,361,932,207.61
  5. Step 5: Solve for x
    x = 1,361,932,207.61/48,343.64
  6. Step 6: Final answer
    x = 28,171.90

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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.