Home / 89,720.08-134,479.56-36,399.68

Finding the Fourth Proportional to 89,720.08, 134,479.56 and 36,399.68

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Solution

The fourth proportional to 89,720.08, 134,479.56 and 36,399.68 is: 54,558.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,720.08 : 134,479.56 = 36,399.68 : x
  2. Step 2: Convert to fraction form
    89,720.08/134,479.56 = 36,399.68/x
  3. Step 3: Cross multiply
    89,720.08x = 134,479.56 × 36,399.68
  4. Step 4: Simplify right side
    89,720.08x = 4,895,012,950.54
  5. Step 5: Solve for x
    x = 4,895,012,950.54/89,720.08
  6. Step 6: Final answer
    x = 54,558.72

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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.