Home / 71,845.50-98,428.81-69,151.92

Finding the Fourth Proportional to 71,845.50, 98,428.81 and 69,151.92

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Solution

The fourth proportional to 71,845.50, 98,428.81 and 69,151.92 is: 94,738.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,845.50 : 98,428.81 = 69,151.92 : x
  2. Step 2: Convert to fraction form
    71,845.50/98,428.81 = 69,151.92/x
  3. Step 3: Cross multiply
    71,845.50x = 98,428.81 × 69,151.92
  4. Step 4: Simplify right side
    71,845.50x = 6,806,541,194.82
  5. Step 5: Solve for x
    x = 6,806,541,194.82/71,845.50
  6. Step 6: Final answer
    x = 94,738.59

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.