Home / 71,428.06-98,573.94-40,803.85

Finding the Fourth Proportional to 71,428.06, 98,573.94 and 40,803.85

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Solution

The fourth proportional to 71,428.06, 98,573.94 and 40,803.85 is: 56,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,428.06 : 98,573.94 = 40,803.85 : x
  2. Step 2: Convert to fraction form
    71,428.06/98,573.94 = 40,803.85/x
  3. Step 3: Cross multiply
    71,428.06x = 98,573.94 × 40,803.85
  4. Step 4: Simplify right side
    71,428.06x = 4,022,196,261.67
  5. Step 5: Solve for x
    x = 4,022,196,261.67/71,428.06
  6. Step 6: Final answer
    x = 56,311.15

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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.