Home / 67,185.36-92,721.20-36,976.40

Finding the Fourth Proportional to 67,185.36, 92,721.20 and 36,976.40

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Solution

The fourth proportional to 67,185.36, 92,721.20 and 36,976.40 is: 51,030.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,185.36 : 92,721.20 = 36,976.40 : x
  2. Step 2: Convert to fraction form
    67,185.36/92,721.20 = 36,976.40/x
  3. Step 3: Cross multiply
    67,185.36x = 92,721.20 × 36,976.40
  4. Step 4: Simplify right side
    67,185.36x = 3,428,496,179.68
  5. Step 5: Solve for x
    x = 3,428,496,179.68/67,185.36
  6. Step 6: Final answer
    x = 51,030.41

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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.