Home / 71,131.71-98,160.48-39,302.76

Finding the Fourth Proportional to 71,131.71, 98,160.48 and 39,302.76

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Solution

The fourth proportional to 71,131.71, 98,160.48 and 39,302.76 is: 54,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,131.71 : 98,160.48 = 39,302.76 : x
  2. Step 2: Convert to fraction form
    71,131.71/98,160.48 = 39,302.76/x
  3. Step 3: Cross multiply
    71,131.71x = 98,160.48 × 39,302.76
  4. Step 4: Simplify right side
    71,131.71x = 3,857,977,786.92
  5. Step 5: Solve for x
    x = 3,857,977,786.92/71,131.71
  6. Step 6: Final answer
    x = 54,237.10

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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.