Home / 71,134.16-98,156.78-39,301.16

Finding the Fourth Proportional to 71,134.16, 98,156.78 and 39,301.16

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Solution

The fourth proportional to 71,134.16, 98,156.78 and 39,301.16 is: 54,230.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,134.16 : 98,156.78 = 39,301.16 : x
  2. Step 2: Convert to fraction form
    71,134.16/98,156.78 = 39,301.16/x
  3. Step 3: Cross multiply
    71,134.16x = 98,156.78 × 39,301.16
  4. Step 4: Simplify right side
    71,134.16x = 3,857,675,315.86
  5. Step 5: Solve for x
    x = 3,857,675,315.86/71,134.16
  6. Step 6: Final answer
    x = 54,230.98

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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.