Home / 71,140.65-98,166.72-39,305.22

Finding the Fourth Proportional to 71,140.65, 98,166.72 and 39,305.22

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Solution

The fourth proportional to 71,140.65, 98,166.72 and 39,305.22 is: 54,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,140.65 : 98,166.72 = 39,305.22 : x
  2. Step 2: Convert to fraction form
    71,140.65/98,166.72 = 39,305.22/x
  3. Step 3: Cross multiply
    71,140.65x = 98,166.72 × 39,305.22
  4. Step 4: Simplify right side
    71,140.65x = 3,858,464,526.28
  5. Step 5: Solve for x
    x = 3,858,464,526.28/71,140.65
  6. Step 6: Final answer
    x = 54,237.13

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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.