Home / 57,034.81-78,705.78-31,539.52

Finding the Fourth Proportional to 57,034.81, 78,705.78 and 31,539.52

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Solution

The fourth proportional to 57,034.81, 78,705.78 and 31,539.52 is: 43,523.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,034.81 : 78,705.78 = 31,539.52 : x
  2. Step 2: Convert to fraction form
    57,034.81/78,705.78 = 31,539.52/x
  3. Step 3: Cross multiply
    57,034.81x = 78,705.78 × 31,539.52
  4. Step 4: Simplify right side
    57,034.81x = 2,482,342,522.43
  5. Step 5: Solve for x
    x = 2,482,342,522.43/57,034.81
  6. Step 6: Final answer
    x = 43,523.29

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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.