Home / 71,037.39-106,561.34-20,434.38

Finding the Fourth Proportional to 71,037.39, 106,561.34 and 20,434.38

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Solution

The fourth proportional to 71,037.39, 106,561.34 and 20,434.38 is: 30,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,037.39 : 106,561.34 = 20,434.38 : x
  2. Step 2: Convert to fraction form
    71,037.39/106,561.34 = 20,434.38/x
  3. Step 3: Cross multiply
    71,037.39x = 106,561.34 × 20,434.38
  4. Step 4: Simplify right side
    71,037.39x = 2,177,514,812.70
  5. Step 5: Solve for x
    x = 2,177,514,812.70/71,037.39
  6. Step 6: Final answer
    x = 30,653.08

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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.