Home / 87,689.09-131,501.13-31,514.06

Finding the Fourth Proportional to 87,689.09, 131,501.13 and 31,514.06

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Solution

The fourth proportional to 87,689.09, 131,501.13 and 31,514.06 is: 47,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689.09 : 131,501.13 = 31,514.06 : x
  2. Step 2: Convert to fraction form
    87,689.09/131,501.13 = 31,514.06/x
  3. Step 3: Cross multiply
    87,689.09x = 131,501.13 × 31,514.06
  4. Step 4: Simplify right side
    87,689.09x = 4,144,133,843.38
  5. Step 5: Solve for x
    x = 4,144,133,843.38/87,689.09
  6. Step 6: Final answer
    x = 47,259.40

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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.