Home / 90,384.96-135,533.70-31,199.88

Finding the Fourth Proportional to 90,384.96, 135,533.70 and 31,199.88

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Solution

The fourth proportional to 90,384.96, 135,533.70 and 31,199.88 is: 46,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,384.96 : 135,533.70 = 31,199.88 : x
  2. Step 2: Convert to fraction form
    90,384.96/135,533.70 = 31,199.88/x
  3. Step 3: Cross multiply
    90,384.96x = 135,533.70 × 31,199.88
  4. Step 4: Simplify right side
    90,384.96x = 4,228,635,175.96
  5. Step 5: Solve for x
    x = 4,228,635,175.96/90,384.96
  6. Step 6: Final answer
    x = 46,784.72

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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.