Home / 54,299.97-81,427.37-21,000.83

Finding the Fourth Proportional to 54,299.97, 81,427.37 and 21,000.83

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Solution

The fourth proportional to 54,299.97, 81,427.37 and 21,000.83 is: 31,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,299.97 : 81,427.37 = 21,000.83 : x
  2. Step 2: Convert to fraction form
    54,299.97/81,427.37 = 21,000.83/x
  3. Step 3: Cross multiply
    54,299.97x = 81,427.37 × 21,000.83
  4. Step 4: Simplify right side
    54,299.97x = 1,710,041,842.58
  5. Step 5: Solve for x
    x = 1,710,041,842.58/54,299.97
  6. Step 6: Final answer
    x = 31,492.50

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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.