Home / 67,020.20-92,467.14-38,715.56

Finding the Fourth Proportional to 67,020.20, 92,467.14 and 38,715.56

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Solution

The fourth proportional to 67,020.20, 92,467.14 and 38,715.56 is: 53,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,020.20 : 92,467.14 = 38,715.56 : x
  2. Step 2: Convert to fraction form
    67,020.20/92,467.14 = 38,715.56/x
  3. Step 3: Cross multiply
    67,020.20x = 92,467.14 × 38,715.56
  4. Step 4: Simplify right side
    67,020.20x = 3,579,917,106.70
  5. Step 5: Solve for x
    x = 3,579,917,106.70/67,020.20
  6. Step 6: Final answer
    x = 53,415.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.