Home / 57,186.59-78,916.53-31,692.87

Finding the Fourth Proportional to 57,186.59, 78,916.53 and 31,692.87

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Solution

The fourth proportional to 57,186.59, 78,916.53 and 31,692.87 is: 43,735.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,186.59 : 78,916.53 = 31,692.87 : x
  2. Step 2: Convert to fraction form
    57,186.59/78,916.53 = 31,692.87/x
  3. Step 3: Cross multiply
    57,186.59x = 78,916.53 × 31,692.87
  4. Step 4: Simplify right side
    57,186.59x = 2,501,091,326.14
  5. Step 5: Solve for x
    x = 2,501,091,326.14/57,186.59
  6. Step 6: Final answer
    x = 43,735.63

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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.