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Finding the Fourth Proportional to 68,047.77, 93,911.17 and 40,824.87

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Solution

The fourth proportional to 68,047.77, 93,911.17 and 40,824.87 is: 56,341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,047.77 : 93,911.17 = 40,824.87 : x
  2. Step 2: Convert to fraction form
    68,047.77/93,911.17 = 40,824.87/x
  3. Step 3: Cross multiply
    68,047.77x = 93,911.17 × 40,824.87
  4. Step 4: Simplify right side
    68,047.77x = 3,833,911,306.80
  5. Step 5: Solve for x
    x = 3,833,911,306.80/68,047.77
  6. Step 6: Final answer
    x = 56,341.47

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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.