Home / 57,097.19-78,796.23-31,257.55

Finding the Fourth Proportional to 57,097.19, 78,796.23 and 31,257.55

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Solution

The fourth proportional to 57,097.19, 78,796.23 and 31,257.55 is: 43,136.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,097.19 : 78,796.23 = 31,257.55 : x
  2. Step 2: Convert to fraction form
    57,097.19/78,796.23 = 31,257.55/x
  3. Step 3: Cross multiply
    57,097.19x = 78,796.23 × 31,257.55
  4. Step 4: Simplify right side
    57,097.19x = 2,462,976,637.09
  5. Step 5: Solve for x
    x = 2,462,976,637.09/57,097.19
  6. Step 6: Final answer
    x = 43,136.57

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1.5x scale

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.