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Finding the Fourth Proportional to 57,950.60, 86,981.96 and 27,985.84

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Solution

The fourth proportional to 57,950.60, 86,981.96 and 27,985.84 is: 42,005.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,950.60 : 86,981.96 = 27,985.84 : x
  2. Step 2: Convert to fraction form
    57,950.60/86,981.96 = 27,985.84/x
  3. Step 3: Cross multiply
    57,950.60x = 86,981.96 × 27,985.84
  4. Step 4: Simplify right side
    57,950.60x = 2,434,263,215.45
  5. Step 5: Solve for x
    x = 2,434,263,215.45/57,950.60
  6. Step 6: Final answer
    x = 42,005.83

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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.