Home / 71,725.56-107,465.28-40,128.84

Finding the Fourth Proportional to 71,725.56, 107,465.28 and 40,128.84

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Solution

The fourth proportional to 71,725.56, 107,465.28 and 40,128.84 is: 60,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,725.56 : 107,465.28 = 40,128.84 : x
  2. Step 2: Convert to fraction form
    71,725.56/107,465.28 = 40,128.84/x
  3. Step 3: Cross multiply
    71,725.56x = 107,465.28 × 40,128.84
  4. Step 4: Simplify right side
    71,725.56x = 4,312,457,026.68
  5. Step 5: Solve for x
    x = 4,312,457,026.68/71,725.56
  6. Step 6: Final answer
    x = 60,124.41

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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.