Home / 45,359.58-68,006.82-21,330.42

Finding the Fourth Proportional to 45,359.58, 68,006.82 and 21,330.42

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Solution

The fourth proportional to 45,359.58, 68,006.82 and 21,330.42 is: 31,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,359.58 : 68,006.82 = 21,330.42 : x
  2. Step 2: Convert to fraction form
    45,359.58/68,006.82 = 21,330.42/x
  3. Step 3: Cross multiply
    45,359.58x = 68,006.82 × 21,330.42
  4. Step 4: Simplify right side
    45,359.58x = 1,450,614,033.46
  5. Step 5: Solve for x
    x = 1,450,614,033.46/45,359.58
  6. Step 6: Final answer
    x = 31,980.32

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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.