Home / 71,140.54-98,174.82-39,309.16

Finding the Fourth Proportional to 71,140.54, 98,174.82 and 39,309.16

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Solution

The fourth proportional to 71,140.54, 98,174.82 and 39,309.16 is: 54,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,140.54 : 98,174.82 = 39,309.16 : x
  2. Step 2: Convert to fraction form
    71,140.54/98,174.82 = 39,309.16/x
  3. Step 3: Cross multiply
    71,140.54x = 98,174.82 × 39,309.16
  4. Step 4: Simplify right side
    71,140.54x = 3,859,169,707.35
  5. Step 5: Solve for x
    x = 3,859,169,707.35/71,140.54
  6. Step 6: Final answer
    x = 54,247.12

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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.