Home / 56,219.73-84,378.78-31,287.93

Finding the Fourth Proportional to 56,219.73, 84,378.78 and 31,287.93

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Solution

The fourth proportional to 56,219.73, 84,378.78 and 31,287.93 is: 46,959.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,219.73 : 84,378.78 = 31,287.93 : x
  2. Step 2: Convert to fraction form
    56,219.73/84,378.78 = 31,287.93/x
  3. Step 3: Cross multiply
    56,219.73x = 84,378.78 × 31,287.93
  4. Step 4: Simplify right side
    56,219.73x = 2,640,037,362.13
  5. Step 5: Solve for x
    x = 2,640,037,362.13/56,219.73
  6. Step 6: Final answer
    x = 46,959.27

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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.