Home / 56,821.04-78,330.96-39,772.52

Finding the Fourth Proportional to 56,821.04, 78,330.96 and 39,772.52

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Solution

The fourth proportional to 56,821.04, 78,330.96 and 39,772.52 is: 54,828.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,821.04 : 78,330.96 = 39,772.52 : x
  2. Step 2: Convert to fraction form
    56,821.04/78,330.96 = 39,772.52/x
  3. Step 3: Cross multiply
    56,821.04x = 78,330.96 × 39,772.52
  4. Step 4: Simplify right side
    56,821.04x = 3,115,419,673.22
  5. Step 5: Solve for x
    x = 3,115,419,673.22/56,821.04
  6. Step 6: Final answer
    x = 54,828.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.