Home / 54,639.42-81,898.98-21,353.28

Finding the Fourth Proportional to 54,639.42, 81,898.98 and 21,353.28

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Solution

The fourth proportional to 54,639.42, 81,898.98 and 21,353.28 is: 32,006.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,639.42 : 81,898.98 = 21,353.28 : x
  2. Step 2: Convert to fraction form
    54,639.42/81,898.98 = 21,353.28/x
  3. Step 3: Cross multiply
    54,639.42x = 81,898.98 × 21,353.28
  4. Step 4: Simplify right side
    54,639.42x = 1,748,811,851.65
  5. Step 5: Solve for x
    x = 1,748,811,851.65/54,639.42
  6. Step 6: Final answer
    x = 32,006.41

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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.