Home / 67,315.44-92,893.32-38,639.28

Finding the Fourth Proportional to 67,315.44, 92,893.32 and 38,639.28

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Solution

The fourth proportional to 67,315.44, 92,893.32 and 38,639.28 is: 53,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,315.44 : 92,893.32 = 38,639.28 : x
  2. Step 2: Convert to fraction form
    67,315.44/92,893.32 = 38,639.28/x
  3. Step 3: Cross multiply
    67,315.44x = 92,893.32 × 38,639.28
  4. Step 4: Simplify right side
    67,315.44x = 3,589,331,001.61
  5. Step 5: Solve for x
    x = 3,589,331,001.61/67,315.44
  6. Step 6: Final answer
    x = 53,321.07

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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.