Home / 90,276.40-135,436.20-37,656.64

Finding the Fourth Proportional to 90,276.40, 135,436.20 and 37,656.64

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Solution

The fourth proportional to 90,276.40, 135,436.20 and 37,656.64 is: 56,493.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.40 : 135,436.20 = 37,656.64 : x
  2. Step 2: Convert to fraction form
    90,276.40/135,436.20 = 37,656.64/x
  3. Step 3: Cross multiply
    90,276.40x = 135,436.20 × 37,656.64
  4. Step 4: Simplify right side
    90,276.40x = 5,100,072,226.37
  5. Step 5: Solve for x
    x = 5,100,072,226.37/90,276.40
  6. Step 6: Final answer
    x = 56,493.97

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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.