Home / 75,103.40-112,614.68-30,102.17

Finding the Fourth Proportional to 75,103.40, 112,614.68 and 30,102.17

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Solution

The fourth proportional to 75,103.40, 112,614.68 and 30,102.17 is: 45,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,103.40 : 112,614.68 = 30,102.17 : x
  2. Step 2: Convert to fraction form
    75,103.40/112,614.68 = 30,102.17/x
  3. Step 3: Cross multiply
    75,103.40x = 112,614.68 × 30,102.17
  4. Step 4: Simplify right side
    75,103.40x = 3,389,946,598.65
  5. Step 5: Solve for x
    x = 3,389,946,598.65/75,103.40
  6. Step 6: Final answer
    x = 45,137.06

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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.