Home / 89,489.21-134,225.10-30,317.90

Finding the Fourth Proportional to 89,489.21, 134,225.10 and 30,317.90

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Solution

The fourth proportional to 89,489.21, 134,225.10 and 30,317.90 is: 45,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,489.21 : 134,225.10 = 30,317.90 : x
  2. Step 2: Convert to fraction form
    89,489.21/134,225.10 = 30,317.90/x
  3. Step 3: Cross multiply
    89,489.21x = 134,225.10 × 30,317.90
  4. Step 4: Simplify right side
    89,489.21x = 4,069,422,488.16
  5. Step 5: Solve for x
    x = 4,069,422,488.16/89,489.21
  6. Step 6: Final answer
    x = 45,473.89

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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.