Home / 87,569.09-131,390.08-43,196.38

Finding the Fourth Proportional to 87,569.09, 131,390.08 and 43,196.38

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Solution

The fourth proportional to 87,569.09, 131,390.08 and 43,196.38 is: 64,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.09 : 131,390.08 = 43,196.38 : x
  2. Step 2: Convert to fraction form
    87,569.09/131,390.08 = 43,196.38/x
  3. Step 3: Cross multiply
    87,569.09x = 131,390.08 × 43,196.38
  4. Step 4: Simplify right side
    87,569.09x = 5,675,575,823.91
  5. Step 5: Solve for x
    x = 5,675,575,823.91/87,569.09
  6. Step 6: Final answer
    x = 64,812.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.