Home / 80,635.02-111,215.79-56,768.46

Finding the Fourth Proportional to 80,635.02, 111,215.79 and 56,768.46

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Solution

The fourth proportional to 80,635.02, 111,215.79 and 56,768.46 is: 78,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,635.02 : 111,215.79 = 56,768.46 : x
  2. Step 2: Convert to fraction form
    80,635.02/111,215.79 = 56,768.46/x
  3. Step 3: Cross multiply
    80,635.02x = 111,215.79 × 56,768.46
  4. Step 4: Simplify right side
    80,635.02x = 6,313,549,125.98
  5. Step 5: Solve for x
    x = 6,313,549,125.98/80,635.02
  6. Step 6: Final answer
    x = 78,297.86

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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.