Home / 84,686.43-127,029.69-21,511.29

Finding the Fourth Proportional to 84,686.43, 127,029.69 and 21,511.29

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Solution

The fourth proportional to 84,686.43, 127,029.69 and 21,511.29 is: 32,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,686.43 : 127,029.69 = 21,511.29 : x
  2. Step 2: Convert to fraction form
    84,686.43/127,029.69 = 21,511.29/x
  3. Step 3: Cross multiply
    84,686.43x = 127,029.69 × 21,511.29
  4. Step 4: Simplify right side
    84,686.43x = 2,732,572,500.20
  5. Step 5: Solve for x
    x = 2,732,572,500.20/84,686.43
  6. Step 6: Final answer
    x = 32,266.95

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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.