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Finding the Fourth Proportional to 89,672.24, 134,509.44 and 30,509.12

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Solution

The fourth proportional to 89,672.24, 134,509.44 and 30,509.12 is: 45,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,672.24 : 134,509.44 = 30,509.12 : x
  2. Step 2: Convert to fraction form
    89,672.24/134,509.44 = 30,509.12/x
  3. Step 3: Cross multiply
    89,672.24x = 134,509.44 × 30,509.12
  4. Step 4: Simplify right side
    89,672.24x = 4,103,764,646.09
  5. Step 5: Solve for x
    x = 4,103,764,646.09/89,672.24
  6. Step 6: Final answer
    x = 45,764.05

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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.