Home / 67,290.29-100,950.21-19,901.69

Finding the Fourth Proportional to 67,290.29, 100,950.21 and 19,901.69

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Solution

The fourth proportional to 67,290.29, 100,950.21 and 19,901.69 is: 29,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,290.29 : 100,950.21 = 19,901.69 : x
  2. Step 2: Convert to fraction form
    67,290.29/100,950.21 = 19,901.69/x
  3. Step 3: Cross multiply
    67,290.29x = 100,950.21 × 19,901.69
  4. Step 4: Simplify right side
    67,290.29x = 2,009,079,280.10
  5. Step 5: Solve for x
    x = 2,009,079,280.10/67,290.29
  6. Step 6: Final answer
    x = 29,856.90

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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.