Home / 90,163.08-135,256.91-37,560.25

Finding the Fourth Proportional to 90,163.08, 135,256.91 and 37,560.25

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Solution

The fourth proportional to 90,163.08, 135,256.91 and 37,560.25 is: 56,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,163.08 : 135,256.91 = 37,560.25 : x
  2. Step 2: Convert to fraction form
    90,163.08/135,256.91 = 37,560.25/x
  3. Step 3: Cross multiply
    90,163.08x = 135,256.91 × 37,560.25
  4. Step 4: Simplify right side
    90,163.08x = 5,080,283,353.83
  5. Step 5: Solve for x
    x = 5,080,283,353.83/90,163.08
  6. Step 6: Final answer
    x = 56,345.49

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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.