Home / 89,585.93-134,399.67-30,421.65

Finding the Fourth Proportional to 89,585.93, 134,399.67 and 30,421.65

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Solution

The fourth proportional to 89,585.93, 134,399.67 and 30,421.65 is: 45,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,585.93 : 134,399.67 = 30,421.65 : x
  2. Step 2: Convert to fraction form
    89,585.93/134,399.67 = 30,421.65/x
  3. Step 3: Cross multiply
    89,585.93x = 134,399.67 × 30,421.65
  4. Step 4: Simplify right side
    89,585.93x = 4,088,659,720.86
  5. Step 5: Solve for x
    x = 4,088,659,720.86/89,585.93
  6. Step 6: Final answer
    x = 45,639.53

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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.