Home / 67,090.10-92,578.79-38,403.15

Finding the Fourth Proportional to 67,090.10, 92,578.79 and 38,403.15

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Solution

The fourth proportional to 67,090.10, 92,578.79 and 38,403.15 is: 52,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,090.10 : 92,578.79 = 38,403.15 : x
  2. Step 2: Convert to fraction form
    67,090.10/92,578.79 = 38,403.15/x
  3. Step 3: Cross multiply
    67,090.10x = 92,578.79 × 38,403.15
  4. Step 4: Simplify right side
    67,090.10x = 3,555,317,028.57
  5. Step 5: Solve for x
    x = 3,555,317,028.57/67,090.10
  6. Step 6: Final answer
    x = 52,993.17

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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.