Home / 56,690.25-78,232.59-31,539.75

Finding the Fourth Proportional to 56,690.25, 78,232.59 and 31,539.75

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Solution

The fourth proportional to 56,690.25, 78,232.59 and 31,539.75 is: 43,524.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.25 : 78,232.59 = 31,539.75 : x
  2. Step 2: Convert to fraction form
    56,690.25/78,232.59 = 31,539.75/x
  3. Step 3: Cross multiply
    56,690.25x = 78,232.59 × 31,539.75
  4. Step 4: Simplify right side
    56,690.25x = 2,467,436,330.45
  5. Step 5: Solve for x
    x = 2,467,436,330.45/56,690.25
  6. Step 6: Final answer
    x = 43,524.88

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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.