Home / 67,992.20-93,827.28-38,921.30

Finding the Fourth Proportional to 67,992.20, 93,827.28 and 38,921.30

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Solution

The fourth proportional to 67,992.20, 93,827.28 and 38,921.30 is: 53,710.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,992.20 : 93,827.28 = 38,921.30 : x
  2. Step 2: Convert to fraction form
    67,992.20/93,827.28 = 38,921.30/x
  3. Step 3: Cross multiply
    67,992.20x = 93,827.28 × 38,921.30
  4. Step 4: Simplify right side
    67,992.20x = 3,651,879,713.06
  5. Step 5: Solve for x
    x = 3,651,879,713.06/67,992.20
  6. Step 6: Final answer
    x = 53,710.27

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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.