Home / 57,210.53-78,955.19-31,724.89

Finding the Fourth Proportional to 57,210.53, 78,955.19 and 31,724.89

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Solution

The fourth proportional to 57,210.53, 78,955.19 and 31,724.89 is: 43,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,210.53 : 78,955.19 = 31,724.89 : x
  2. Step 2: Convert to fraction form
    57,210.53/78,955.19 = 31,724.89/x
  3. Step 3: Cross multiply
    57,210.53x = 78,955.19 × 31,724.89
  4. Step 4: Simplify right side
    57,210.53x = 2,504,844,503.44
  5. Step 5: Solve for x
    x = 2,504,844,503.44/57,210.53
  6. Step 6: Final answer
    x = 43,782.93

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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.