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Finding the Fourth Proportional to 76,884.39, 115,327.35 and 26,965.71

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Solution

The fourth proportional to 76,884.39, 115,327.35 and 26,965.71 is: 40,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,884.39 : 115,327.35 = 26,965.71 : x
  2. Step 2: Convert to fraction form
    76,884.39/115,327.35 = 26,965.71/x
  3. Step 3: Cross multiply
    76,884.39x = 115,327.35 × 26,965.71
  4. Step 4: Simplify right side
    76,884.39x = 3,109,883,875.17
  5. Step 5: Solve for x
    x = 3,109,883,875.17/76,884.39
  6. Step 6: Final answer
    x = 40,448.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.