Home / 57,302.74-79,077.08-31,809.30

Finding the Fourth Proportional to 57,302.74, 79,077.08 and 31,809.30

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Solution

The fourth proportional to 57,302.74, 79,077.08 and 31,809.30 is: 43,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,302.74 : 79,077.08 = 31,809.30 : x
  2. Step 2: Convert to fraction form
    57,302.74/79,077.08 = 31,809.30/x
  3. Step 3: Cross multiply
    57,302.74x = 79,077.08 × 31,809.30
  4. Step 4: Simplify right side
    57,302.74x = 2,515,386,936.91
  5. Step 5: Solve for x
    x = 2,515,386,936.91/57,302.74
  6. Step 6: Final answer
    x = 43,896.45

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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.