Home / 67,491.12-101,236.68-20,106.93

Finding the Fourth Proportional to 67,491.12, 101,236.68 and 20,106.93

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Solution

The fourth proportional to 67,491.12, 101,236.68 and 20,106.93 is: 30,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,491.12 : 101,236.68 = 20,106.93 : x
  2. Step 2: Convert to fraction form
    67,491.12/101,236.68 = 20,106.93/x
  3. Step 3: Cross multiply
    67,491.12x = 101,236.68 × 20,106.93
  4. Step 4: Simplify right side
    67,491.12x = 2,035,558,838.19
  5. Step 5: Solve for x
    x = 2,035,558,838.19/67,491.12
  6. Step 6: Final answer
    x = 30,160.40

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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.