Home / 87,514.24-120,768.60-49,788.40

Finding the Fourth Proportional to 87,514.24, 120,768.60 and 49,788.40

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Solution

The fourth proportional to 87,514.24, 120,768.60 and 49,788.40 is: 68,707.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,514.24 : 120,768.60 = 49,788.40 : x
  2. Step 2: Convert to fraction form
    87,514.24/120,768.60 = 49,788.40/x
  3. Step 3: Cross multiply
    87,514.24x = 120,768.60 × 49,788.40
  4. Step 4: Simplify right side
    87,514.24x = 6,012,875,364.24
  5. Step 5: Solve for x
    x = 6,012,875,364.24/87,514.24
  6. Step 6: Final answer
    x = 68,707.39

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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.