Home / 57,072.33-78,759.95-31,580.55

Finding the Fourth Proportional to 57,072.33, 78,759.95 and 31,580.55

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Solution

The fourth proportional to 57,072.33, 78,759.95 and 31,580.55 is: 43,581.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,072.33 : 78,759.95 = 31,580.55 : x
  2. Step 2: Convert to fraction form
    57,072.33/78,759.95 = 31,580.55/x
  3. Step 3: Cross multiply
    57,072.33x = 78,759.95 × 31,580.55
  4. Step 4: Simplify right side
    57,072.33x = 2,487,282,381.07
  5. Step 5: Solve for x
    x = 2,487,282,381.07/57,072.33
  6. Step 6: Final answer
    x = 43,581.23

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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.