Home / 84,687.06-127,030.64-21,511.92

Finding the Fourth Proportional to 84,687.06, 127,030.64 and 21,511.92

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Solution

The fourth proportional to 84,687.06, 127,030.64 and 21,511.92 is: 32,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,687.06 : 127,030.64 = 21,511.92 : x
  2. Step 2: Convert to fraction form
    84,687.06/127,030.64 = 21,511.92/x
  3. Step 3: Cross multiply
    84,687.06x = 127,030.64 × 21,511.92
  4. Step 4: Simplify right side
    84,687.06x = 2,732,672,857.67
  5. Step 5: Solve for x
    x = 2,732,672,857.67/84,687.06
  6. Step 6: Final answer
    x = 32,267.89

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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.