Home / 87,123.06-120,211.49-56,952.59

Finding the Fourth Proportional to 87,123.06, 120,211.49 and 56,952.59

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Solution

The fourth proportional to 87,123.06, 120,211.49 and 56,952.59 is: 78,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,123.06 : 120,211.49 = 56,952.59 : x
  2. Step 2: Convert to fraction form
    87,123.06/120,211.49 = 56,952.59/x
  3. Step 3: Cross multiply
    87,123.06x = 120,211.49 × 56,952.59
  4. Step 4: Simplify right side
    87,123.06x = 6,846,355,244.58
  5. Step 5: Solve for x
    x = 6,846,355,244.58/87,123.06
  6. Step 6: Final answer
    x = 78,582.58

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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.