Home / 75,783.04-113,674.94-19,619.21

Finding the Fourth Proportional to 75,783.04, 113,674.94 and 19,619.21

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Solution

The fourth proportional to 75,783.04, 113,674.94 and 19,619.21 is: 29,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,783.04 : 113,674.94 = 19,619.21 : x
  2. Step 2: Convert to fraction form
    75,783.04/113,674.94 = 19,619.21/x
  3. Step 3: Cross multiply
    75,783.04x = 113,674.94 × 19,619.21
  4. Step 4: Simplify right side
    75,783.04x = 2,230,212,889.62
  5. Step 5: Solve for x
    x = 2,230,212,889.62/75,783.04
  6. Step 6: Final answer
    x = 29,428.92

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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.