Home / 45,691.36-68,537.16-28,124.38

Finding the Fourth Proportional to 45,691.36, 68,537.16 and 28,124.38

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Solution

The fourth proportional to 45,691.36, 68,537.16 and 28,124.38 is: 42,186.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,691.36 : 68,537.16 = 28,124.38 : x
  2. Step 2: Convert to fraction form
    45,691.36/68,537.16 = 28,124.38/x
  3. Step 3: Cross multiply
    45,691.36x = 68,537.16 × 28,124.38
  4. Step 4: Simplify right side
    45,691.36x = 1,927,565,131.96
  5. Step 5: Solve for x
    x = 1,927,565,131.96/45,691.36
  6. Step 6: Final answer
    x = 42,186.64

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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.