Home / 56,721.02-84,932.88-39,990.46

Finding the Fourth Proportional to 56,721.02, 84,932.88 and 39,990.46

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Solution

The fourth proportional to 56,721.02, 84,932.88 and 39,990.46 is: 59,880.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.02 : 84,932.88 = 39,990.46 : x
  2. Step 2: Convert to fraction form
    56,721.02/84,932.88 = 39,990.46/x
  3. Step 3: Cross multiply
    56,721.02x = 84,932.88 × 39,990.46
  4. Step 4: Simplify right side
    56,721.02x = 3,396,504,940.32
  5. Step 5: Solve for x
    x = 3,396,504,940.32/56,721.02
  6. Step 6: Final answer
    x = 59,880.89

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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.