Home / 71,141.54-98,176.20-39,310.16

Finding the Fourth Proportional to 71,141.54, 98,176.20 and 39,310.16

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Solution

The fourth proportional to 71,141.54, 98,176.20 and 39,310.16 is: 54,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.54 : 98,176.20 = 39,310.16 : x
  2. Step 2: Convert to fraction form
    71,141.54/98,176.20 = 39,310.16/x
  3. Step 3: Cross multiply
    71,141.54x = 98,176.20 × 39,310.16
  4. Step 4: Simplify right side
    71,141.54x = 3,859,322,130.19
  5. Step 5: Solve for x
    x = 3,859,322,130.19/71,141.54
  6. Step 6: Final answer
    x = 54,248.50

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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.