Home / 45,320.58-67,957.52-20,339.20

Finding the Fourth Proportional to 45,320.58, 67,957.52 and 20,339.20

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Solution

The fourth proportional to 45,320.58, 67,957.52 and 20,339.20 is: 30,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.58 : 67,957.52 = 20,339.20 : x
  2. Step 2: Convert to fraction form
    45,320.58/67,957.52 = 20,339.20/x
  3. Step 3: Cross multiply
    45,320.58x = 67,957.52 × 20,339.20
  4. Step 4: Simplify right side
    45,320.58x = 1,382,201,574.03
  5. Step 5: Solve for x
    x = 1,382,201,574.03/45,320.58
  6. Step 6: Final answer
    x = 30,498.32

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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.