Home / 90,415.12-135,607.20-23,855.94

Finding the Fourth Proportional to 90,415.12, 135,607.20 and 23,855.94

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Solution

The fourth proportional to 90,415.12, 135,607.20 and 23,855.94 is: 35,779.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,415.12 : 135,607.20 = 23,855.94 : x
  2. Step 2: Convert to fraction form
    90,415.12/135,607.20 = 23,855.94/x
  3. Step 3: Cross multiply
    90,415.12x = 135,607.20 × 23,855.94
  4. Step 4: Simplify right side
    90,415.12x = 3,235,037,226.77
  5. Step 5: Solve for x
    x = 3,235,037,226.77/90,415.12
  6. Step 6: Final answer
    x = 35,779.83

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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.