Home / 67,006.86-100,378.91-38,867.81

Finding the Fourth Proportional to 67,006.86, 100,378.91 and 38,867.81

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Solution

The fourth proportional to 67,006.86, 100,378.91 and 38,867.81 is: 58,225.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,006.86 : 100,378.91 = 38,867.81 : x
  2. Step 2: Convert to fraction form
    67,006.86/100,378.91 = 38,867.81/x
  3. Step 3: Cross multiply
    67,006.86x = 100,378.91 × 38,867.81
  4. Step 4: Simplify right side
    67,006.86x = 3,901,507,705.65
  5. Step 5: Solve for x
    x = 3,901,507,705.65/67,006.86
  6. Step 6: Final answer
    x = 58,225.50

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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.