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Finding the Fourth Proportional to 56,737.82, 78,297.53 and 31,243.65

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Solution

The fourth proportional to 56,737.82, 78,297.53 and 31,243.65 is: 43,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,737.82 : 78,297.53 = 31,243.65 : x
  2. Step 2: Convert to fraction form
    56,737.82/78,297.53 = 31,243.65/x
  3. Step 3: Cross multiply
    56,737.82x = 78,297.53 × 31,243.65
  4. Step 4: Simplify right side
    56,737.82x = 2,446,300,466.97
  5. Step 5: Solve for x
    x = 2,446,300,466.97/56,737.82
  6. Step 6: Final answer
    x = 43,115.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.