Home / 56,690.34-78,232.77-31,539.84

Finding the Fourth Proportional to 56,690.34, 78,232.77 and 31,539.84

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Solution

The fourth proportional to 56,690.34, 78,232.77 and 31,539.84 is: 43,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.34 : 78,232.77 = 31,539.84 : x
  2. Step 2: Convert to fraction form
    56,690.34/78,232.77 = 31,539.84/x
  3. Step 3: Cross multiply
    56,690.34x = 78,232.77 × 31,539.84
  4. Step 4: Simplify right side
    56,690.34x = 2,467,449,048.56
  5. Step 5: Solve for x
    x = 2,467,449,048.56/56,690.34
  6. Step 6: Final answer
    x = 43,525.04

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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.