Home / 90,392.09-135,533.44-40,462.88

Finding the Fourth Proportional to 90,392.09, 135,533.44 and 40,462.88

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Solution

The fourth proportional to 90,392.09, 135,533.44 and 40,462.88 is: 60,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,392.09 : 135,533.44 = 40,462.88 : x
  2. Step 2: Convert to fraction form
    90,392.09/135,533.44 = 40,462.88/x
  3. Step 3: Cross multiply
    90,392.09x = 135,533.44 × 40,462.88
  4. Step 4: Simplify right side
    90,392.09x = 5,484,072,464.01
  5. Step 5: Solve for x
    x = 5,484,072,464.01/90,392.09
  6. Step 6: Final answer
    x = 60,669.83

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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.