Home / 48,231.30-72,322.65-28,515.90

Finding the Fourth Proportional to 48,231.30, 72,322.65 and 28,515.90

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Solution

The fourth proportional to 48,231.30, 72,322.65 and 28,515.90 is: 42,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,231.30 : 72,322.65 = 28,515.90 : x
  2. Step 2: Convert to fraction form
    48,231.30/72,322.65 = 28,515.90/x
  3. Step 3: Cross multiply
    48,231.30x = 72,322.65 × 28,515.90
  4. Step 4: Simplify right side
    48,231.30x = 2,062,345,455.14
  5. Step 5: Solve for x
    x = 2,062,345,455.14/48,231.30
  6. Step 6: Final answer
    x = 42,759.48

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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.