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Finding the Fourth Proportional to 68,880.79, 95,054.25 and 38,663.74

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Solution

The fourth proportional to 68,880.79, 95,054.25 and 38,663.74 is: 53,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,880.79 : 95,054.25 = 38,663.74 : x
  2. Step 2: Convert to fraction form
    68,880.79/95,054.25 = 38,663.74/x
  3. Step 3: Cross multiply
    68,880.79x = 95,054.25 × 38,663.74
  4. Step 4: Simplify right side
    68,880.79x = 3,675,152,807.90
  5. Step 5: Solve for x
    x = 3,675,152,807.90/68,880.79
  6. Step 6: Final answer
    x = 53,355.27

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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.