Home / 55,540.20-76,647.51-31,666.62

Finding the Fourth Proportional to 55,540.20, 76,647.51 and 31,666.62

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Solution

The fourth proportional to 55,540.20, 76,647.51 and 31,666.62 is: 43,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,540.20 : 76,647.51 = 31,666.62 : x
  2. Step 2: Convert to fraction form
    55,540.20/76,647.51 = 31,666.62/x
  3. Step 3: Cross multiply
    55,540.20x = 76,647.51 × 31,666.62
  4. Step 4: Simplify right side
    55,540.20x = 2,427,167,573.12
  5. Step 5: Solve for x
    x = 2,427,167,573.12/55,540.20
  6. Step 6: Final answer
    x = 43,701.10

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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.