Home / 71,621.40-98,826.54-41,400.84

Finding the Fourth Proportional to 71,621.40, 98,826.54 and 41,400.84

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Solution

The fourth proportional to 71,621.40, 98,826.54 and 41,400.84 is: 57,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,621.40 : 98,826.54 = 41,400.84 : x
  2. Step 2: Convert to fraction form
    71,621.40/98,826.54 = 41,400.84/x
  3. Step 3: Cross multiply
    71,621.40x = 98,826.54 × 41,400.84
  4. Step 4: Simplify right side
    71,621.40x = 4,091,501,770.29
  5. Step 5: Solve for x
    x = 4,091,501,770.29/71,621.40
  6. Step 6: Final answer
    x = 57,126.81

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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.