Home / 56,376.45-84,561.66-18,936.81

Finding the Fourth Proportional to 56,376.45, 84,561.66 and 18,936.81

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Solution

The fourth proportional to 56,376.45, 84,561.66 and 18,936.81 is: 28,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,376.45 : 84,561.66 = 18,936.81 : x
  2. Step 2: Convert to fraction form
    56,376.45/84,561.66 = 18,936.81/x
  3. Step 3: Cross multiply
    56,376.45x = 84,561.66 × 18,936.81
  4. Step 4: Simplify right side
    56,376.45x = 1,601,328,088.70
  5. Step 5: Solve for x
    x = 1,601,328,088.70/56,376.45
  6. Step 6: Final answer
    x = 28,404.20

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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.