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Finding the Fourth Proportional to 56,494.72, 84,689.74 and 20,936.22

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Solution

The fourth proportional to 56,494.72, 84,689.74 and 20,936.22 is: 31,384.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,494.72 : 84,689.74 = 20,936.22 : x
  2. Step 2: Convert to fraction form
    56,494.72/84,689.74 = 20,936.22/x
  3. Step 3: Cross multiply
    56,494.72x = 84,689.74 × 20,936.22
  4. Step 4: Simplify right side
    56,494.72x = 1,773,083,028.38
  5. Step 5: Solve for x
    x = 1,773,083,028.38/56,494.72
  6. Step 6: Final answer
    x = 31,384.93

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1.5x scale

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.