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Finding the Fourth Proportional to 58,185, 87,277.50 and 21,249

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Solution

The fourth proportional to 58,185, 87,277.50 and 21,249 is: 31,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,185 : 87,277.50 = 21,249 : x
  2. Step 2: Convert to fraction form
    58,185/87,277.50 = 21,249/x
  3. Step 3: Cross multiply
    58,185x = 87,277.50 × 21,249
  4. Step 4: Simplify right side
    58,185x = 1,854,559,597.50
  5. Step 5: Solve for x
    x = 1,854,559,597.50/58,185
  6. Step 6: Final answer
    x = 31,873.50

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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.