Home / 90,500.51-135,529.22-63,780.83

Finding the Fourth Proportional to 90,500.51, 135,529.22 and 63,780.83

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Solution

The fourth proportional to 90,500.51, 135,529.22 and 63,780.83 is: 95,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,500.51 : 135,529.22 = 63,780.83 : x
  2. Step 2: Convert to fraction form
    90,500.51/135,529.22 = 63,780.83/x
  3. Step 3: Cross multiply
    90,500.51x = 135,529.22 × 63,780.83
  4. Step 4: Simplify right side
    90,500.51x = 8,644,165,144.30
  5. Step 5: Solve for x
    x = 8,644,165,144.30/90,500.51
  6. Step 6: Final answer
    x = 95,515.10

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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.