Home / 73,005.80-109,509.57-28,653.44

Finding the Fourth Proportional to 73,005.80, 109,509.57 and 28,653.44

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Solution

The fourth proportional to 73,005.80, 109,509.57 and 28,653.44 is: 42,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,005.80 : 109,509.57 = 28,653.44 : x
  2. Step 2: Convert to fraction form
    73,005.80/109,509.57 = 28,653.44/x
  3. Step 3: Cross multiply
    73,005.80x = 109,509.57 × 28,653.44
  4. Step 4: Simplify right side
    73,005.80x = 3,137,825,345.87
  5. Step 5: Solve for x
    x = 3,137,825,345.87/73,005.80
  6. Step 6: Final answer
    x = 42,980.50

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1.5x scale

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.