Home / 87,877.45-121,269.38-47,590.89

Finding the Fourth Proportional to 87,877.45, 121,269.38 and 47,590.89

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Solution

The fourth proportional to 87,877.45, 121,269.38 and 47,590.89 is: 65,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.45 : 121,269.38 = 47,590.89 : x
  2. Step 2: Convert to fraction form
    87,877.45/121,269.38 = 47,590.89/x
  3. Step 3: Cross multiply
    87,877.45x = 121,269.38 × 47,590.89
  4. Step 4: Simplify right side
    87,877.45x = 5,771,317,236.58
  5. Step 5: Solve for x
    x = 5,771,317,236.58/87,877.45
  6. Step 6: Final answer
    x = 65,674.61

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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.