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Finding the Fourth Proportional to 64,759.92, 89,350.08 and 40,894.32

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Solution

The fourth proportional to 64,759.92, 89,350.08 and 40,894.32 is: 56,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,759.92 : 89,350.08 = 40,894.32 : x
  2. Step 2: Convert to fraction form
    64,759.92/89,350.08 = 40,894.32/x
  3. Step 3: Cross multiply
    64,759.92x = 89,350.08 × 40,894.32
  4. Step 4: Simplify right side
    64,759.92x = 3,653,910,763.55
  5. Step 5: Solve for x
    x = 3,653,910,763.55/64,759.92
  6. Step 6: Final answer
    x = 56,422.41

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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.