Home / 55,511.21-76,603.57-31,645.57

Finding the Fourth Proportional to 55,511.21, 76,603.57 and 31,645.57

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Solution

The fourth proportional to 55,511.21, 76,603.57 and 31,645.57 is: 43,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,511.21 : 76,603.57 = 31,645.57 : x
  2. Step 2: Convert to fraction form
    55,511.21/76,603.57 = 31,645.57/x
  3. Step 3: Cross multiply
    55,511.21x = 76,603.57 × 31,645.57
  4. Step 4: Simplify right side
    55,511.21x = 2,424,163,478.46
  5. Step 5: Solve for x
    x = 2,424,163,478.46/55,511.21
  6. Step 6: Final answer
    x = 43,669.80

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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.