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Finding the Fourth Proportional to 68,992.84, 95,209.98 and 40,332.20

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Solution

The fourth proportional to 68,992.84, 95,209.98 and 40,332.20 is: 55,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992.84 : 95,209.98 = 40,332.20 : x
  2. Step 2: Convert to fraction form
    68,992.84/95,209.98 = 40,332.20/x
  3. Step 3: Cross multiply
    68,992.84x = 95,209.98 × 40,332.20
  4. Step 4: Simplify right side
    68,992.84x = 3,840,027,955.36
  5. Step 5: Solve for x
    x = 3,840,027,955.36/68,992.84
  6. Step 6: Final answer
    x = 55,658.35

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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.