Home / 71,475.09-98,636.94-39,211.36

Finding the Fourth Proportional to 71,475.09, 98,636.94 and 39,211.36

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Solution

The fourth proportional to 71,475.09, 98,636.94 and 39,211.36 is: 54,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,475.09 : 98,636.94 = 39,211.36 : x
  2. Step 2: Convert to fraction form
    71,475.09/98,636.94 = 39,211.36/x
  3. Step 3: Cross multiply
    71,475.09x = 98,636.94 × 39,211.36
  4. Step 4: Simplify right side
    71,475.09x = 3,867,688,338.04
  5. Step 5: Solve for x
    x = 3,867,688,338.04/71,475.09
  6. Step 6: Final answer
    x = 54,112.40

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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.