Home / 55,515.21-76,609.08-31,649.57

Finding the Fourth Proportional to 55,515.21, 76,609.08 and 31,649.57

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Solution

The fourth proportional to 55,515.21, 76,609.08 and 31,649.57 is: 43,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.21 : 76,609.08 = 31,649.57 : x
  2. Step 2: Convert to fraction form
    55,515.21/76,609.08 = 31,649.57/x
  3. Step 3: Cross multiply
    55,515.21x = 76,609.08 × 31,649.57
  4. Step 4: Simplify right side
    55,515.21x = 2,424,644,440.10
  5. Step 5: Solve for x
    x = 2,424,644,440.10/55,515.21
  6. Step 6: Final answer
    x = 43,675.32

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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.