Home / 56,832.90-78,400.58-43,380.80

Finding the Fourth Proportional to 56,832.90, 78,400.58 and 43,380.80

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Solution

The fourth proportional to 56,832.90, 78,400.58 and 43,380.80 is: 59,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,832.90 : 78,400.58 = 43,380.80 : x
  2. Step 2: Convert to fraction form
    56,832.90/78,400.58 = 43,380.80/x
  3. Step 3: Cross multiply
    56,832.90x = 78,400.58 × 43,380.80
  4. Step 4: Simplify right side
    56,832.90x = 3,401,079,880.86
  5. Step 5: Solve for x
    x = 3,401,079,880.86/56,832.90
  6. Step 6: Final answer
    x = 59,843.50

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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.