Home / 56,121.15-84,181.47-18,681.17

Finding the Fourth Proportional to 56,121.15, 84,181.47 and 18,681.17

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Solution

The fourth proportional to 56,121.15, 84,181.47 and 18,681.17 is: 28,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.15 : 84,181.47 = 18,681.17 : x
  2. Step 2: Convert to fraction form
    56,121.15/84,181.47 = 18,681.17/x
  3. Step 3: Cross multiply
    56,121.15x = 84,181.47 × 18,681.17
  4. Step 4: Simplify right side
    56,121.15x = 1,572,608,100.80
  5. Step 5: Solve for x
    x = 1,572,608,100.80/56,121.15
  6. Step 6: Final answer
    x = 28,021.66

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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.