Home / 56,776.18-85,083.96-31,486.88

Finding the Fourth Proportional to 56,776.18, 85,083.96 and 31,486.88

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Solution

The fourth proportional to 56,776.18, 85,083.96 and 31,486.88 is: 47,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,776.18 : 85,083.96 = 31,486.88 : x
  2. Step 2: Convert to fraction form
    56,776.18/85,083.96 = 31,486.88/x
  3. Step 3: Cross multiply
    56,776.18x = 85,083.96 × 31,486.88
  4. Step 4: Simplify right side
    56,776.18x = 2,679,028,438.44
  5. Step 5: Solve for x
    x = 2,679,028,438.44/56,776.18
  6. Step 6: Final answer
    x = 47,185.78

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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.