Home / 82,418.40-123,595.46-28,372.86

Finding the Fourth Proportional to 82,418.40, 123,595.46 and 28,372.86

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Solution

The fourth proportional to 82,418.40, 123,595.46 and 28,372.86 is: 42,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,418.40 : 123,595.46 = 28,372.86 : x
  2. Step 2: Convert to fraction form
    82,418.40/123,595.46 = 28,372.86/x
  3. Step 3: Cross multiply
    82,418.40x = 123,595.46 × 28,372.86
  4. Step 4: Simplify right side
    82,418.40x = 3,506,756,683.22
  5. Step 5: Solve for x
    x = 3,506,756,683.22/82,418.40
  6. Step 6: Final answer
    x = 42,548.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.