Home / 70,152.28-96,805.50-39,940.68

Finding the Fourth Proportional to 70,152.28, 96,805.50 and 39,940.68

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Solution

The fourth proportional to 70,152.28, 96,805.50 and 39,940.68 is: 55,115.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,152.28 : 96,805.50 = 39,940.68 : x
  2. Step 2: Convert to fraction form
    70,152.28/96,805.50 = 39,940.68/x
  3. Step 3: Cross multiply
    70,152.28x = 96,805.50 × 39,940.68
  4. Step 4: Simplify right side
    70,152.28x = 3,866,477,497.74
  5. Step 5: Solve for x
    x = 3,866,477,497.74/70,152.28
  6. Step 6: Final answer
    x = 55,115.49

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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.