Home / 73,025.04-109,555.78-20,434.07

Finding the Fourth Proportional to 73,025.04, 109,555.78 and 20,434.07

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Solution

The fourth proportional to 73,025.04, 109,555.78 and 20,434.07 is: 30,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,025.04 : 109,555.78 = 20,434.07 : x
  2. Step 2: Convert to fraction form
    73,025.04/109,555.78 = 20,434.07/x
  3. Step 3: Cross multiply
    73,025.04x = 109,555.78 × 20,434.07
  4. Step 4: Simplify right side
    73,025.04x = 2,238,669,929.65
  5. Step 5: Solve for x
    x = 2,238,669,929.65/73,025.04
  6. Step 6: Final answer
    x = 30,656.20

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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.