Home / 67,958.09-93,775.30-39,680.18

Finding the Fourth Proportional to 67,958.09, 93,775.30 and 39,680.18

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Solution

The fourth proportional to 67,958.09, 93,775.30 and 39,680.18 is: 54,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,958.09 : 93,775.30 = 39,680.18 : x
  2. Step 2: Convert to fraction form
    67,958.09/93,775.30 = 39,680.18/x
  3. Step 3: Cross multiply
    67,958.09x = 93,775.30 × 39,680.18
  4. Step 4: Simplify right side
    67,958.09x = 3,721,020,314.68
  5. Step 5: Solve for x
    x = 3,721,020,314.68/67,958.09
  6. Step 6: Final answer
    x = 54,754.64

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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.