Home / 90,374.11-135,412.94-64,031.83

Finding the Fourth Proportional to 90,374.11, 135,412.94 and 64,031.83

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Solution

The fourth proportional to 90,374.11, 135,412.94 and 64,031.83 is: 95,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374.11 : 135,412.94 = 64,031.83 : x
  2. Step 2: Convert to fraction form
    90,374.11/135,412.94 = 64,031.83/x
  3. Step 3: Cross multiply
    90,374.11x = 135,412.94 × 64,031.83
  4. Step 4: Simplify right side
    90,374.11x = 8,670,738,033.72
  5. Step 5: Solve for x
    x = 8,670,738,033.72/90,374.11
  6. Step 6: Final answer
    x = 95,942.72

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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.