Home / 67,206.51-100,711.35-40,847.69

Finding the Fourth Proportional to 67,206.51, 100,711.35 and 40,847.69

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Solution

The fourth proportional to 67,206.51, 100,711.35 and 40,847.69 is: 61,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,206.51 : 100,711.35 = 40,847.69 : x
  2. Step 2: Convert to fraction form
    67,206.51/100,711.35 = 40,847.69/x
  3. Step 3: Cross multiply
    67,206.51x = 100,711.35 × 40,847.69
  4. Step 4: Simplify right side
    67,206.51x = 4,113,826,256.06
  5. Step 5: Solve for x
    x = 4,113,826,256.06/67,206.51
  6. Step 6: Final answer
    x = 61,211.72

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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.