Home / 55,513.21-76,606.32-31,647.57

Finding the Fourth Proportional to 55,513.21, 76,606.32 and 31,647.57

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Solution

The fourth proportional to 55,513.21, 76,606.32 and 31,647.57 is: 43,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,513.21 : 76,606.32 = 31,647.57 : x
  2. Step 2: Convert to fraction form
    55,513.21/76,606.32 = 31,647.57/x
  3. Step 3: Cross multiply
    55,513.21x = 76,606.32 × 31,647.57
  4. Step 4: Simplify right side
    55,513.21x = 2,424,403,874.64
  5. Step 5: Solve for x
    x = 2,424,403,874.64/55,513.21
  6. Step 6: Final answer
    x = 43,672.56

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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.