Home / 90,336.24-135,497.88-28,005.12

Finding the Fourth Proportional to 90,336.24, 135,497.88 and 28,005.12

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Solution

The fourth proportional to 90,336.24, 135,497.88 and 28,005.12 is: 42,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,336.24 : 135,497.88 = 28,005.12 : x
  2. Step 2: Convert to fraction form
    90,336.24/135,497.88 = 28,005.12/x
  3. Step 3: Cross multiply
    90,336.24x = 135,497.88 × 28,005.12
  4. Step 4: Simplify right side
    90,336.24x = 3,794,634,389.15
  5. Step 5: Solve for x
    x = 3,794,634,389.15/90,336.24
  6. Step 6: Final answer
    x = 42,005.67

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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.