Home / 67,237.49-100,856.22-19,853.21

Finding the Fourth Proportional to 67,237.49, 100,856.22 and 19,853.21

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Solution

The fourth proportional to 67,237.49, 100,856.22 and 19,853.21 is: 29,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,237.49 : 100,856.22 = 19,853.21 : x
  2. Step 2: Convert to fraction form
    67,237.49/100,856.22 = 19,853.21/x
  3. Step 3: Cross multiply
    67,237.49x = 100,856.22 × 19,853.21
  4. Step 4: Simplify right side
    67,237.49x = 2,002,319,715.47
  5. Step 5: Solve for x
    x = 2,002,319,715.47/67,237.49
  6. Step 6: Final answer
    x = 29,779.81

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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.