Home / 56,789.28-85,074.74-31,753.40

Finding the Fourth Proportional to 56,789.28, 85,074.74 and 31,753.40

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Solution

The fourth proportional to 56,789.28, 85,074.74 and 31,753.40 is: 47,569.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,789.28 : 85,074.74 = 31,753.40 : x
  2. Step 2: Convert to fraction form
    56,789.28/85,074.74 = 31,753.40/x
  3. Step 3: Cross multiply
    56,789.28x = 85,074.74 × 31,753.40
  4. Step 4: Simplify right side
    56,789.28x = 2,701,412,249.12
  5. Step 5: Solve for x
    x = 2,701,412,249.12/56,789.28
  6. Step 6: Final answer
    x = 47,569.05

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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.