Home / 56,021.25-77,310.98-30,872.37

Finding the Fourth Proportional to 56,021.25, 77,310.98 and 30,872.37

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Solution

The fourth proportional to 56,021.25, 77,310.98 and 30,872.37 is: 42,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,021.25 : 77,310.98 = 30,872.37 : x
  2. Step 2: Convert to fraction form
    56,021.25/77,310.98 = 30,872.37/x
  3. Step 3: Cross multiply
    56,021.25x = 77,310.98 × 30,872.37
  4. Step 4: Simplify right side
    56,021.25x = 2,386,773,025.26
  5. Step 5: Solve for x
    x = 2,386,773,025.26/56,021.25
  6. Step 6: Final answer
    x = 42,604.78

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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.