Home / 57,347.31-79,111.82-40,360.98

Finding the Fourth Proportional to 57,347.31, 79,111.82 and 40,360.98

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Solution

The fourth proportional to 57,347.31, 79,111.82 and 40,360.98 is: 55,678.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,347.31 : 79,111.82 = 40,360.98 : x
  2. Step 2: Convert to fraction form
    57,347.31/79,111.82 = 40,360.98/x
  3. Step 3: Cross multiply
    57,347.31x = 79,111.82 × 40,360.98
  4. Step 4: Simplify right side
    57,347.31x = 3,193,030,982.36
  5. Step 5: Solve for x
    x = 3,193,030,982.36/57,347.31
  6. Step 6: Final answer
    x = 55,678.82

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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.