Home / 56,772.12-78,351.69-31,281.11

Finding the Fourth Proportional to 56,772.12, 78,351.69 and 31,281.11

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Solution

The fourth proportional to 56,772.12, 78,351.69 and 31,281.11 is: 43,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772.12 : 78,351.69 = 31,281.11 : x
  2. Step 2: Convert to fraction form
    56,772.12/78,351.69 = 31,281.11/x
  3. Step 3: Cross multiply
    56,772.12x = 78,351.69 × 31,281.11
  4. Step 4: Simplify right side
    56,772.12x = 2,450,927,833.58
  5. Step 5: Solve for x
    x = 2,450,927,833.58/56,772.12
  6. Step 6: Final answer
    x = 43,171.33

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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.