Home / 90,893.98-136,403.24-31,729.66

Finding the Fourth Proportional to 90,893.98, 136,403.24 and 31,729.66

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Solution

The fourth proportional to 90,893.98, 136,403.24 and 31,729.66 is: 47,616.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,893.98 : 136,403.24 = 31,729.66 : x
  2. Step 2: Convert to fraction form
    90,893.98/136,403.24 = 31,729.66/x
  3. Step 3: Cross multiply
    90,893.98x = 136,403.24 × 31,729.66
  4. Step 4: Simplify right side
    90,893.98x = 4,328,028,428.10
  5. Step 5: Solve for x
    x = 4,328,028,428.10/90,893.98
  6. Step 6: Final answer
    x = 47,616.23

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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.