Home / 89,453.44-134,172.32-30,287.76

Finding the Fourth Proportional to 89,453.44, 134,172.32 and 30,287.76

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Solution

The fourth proportional to 89,453.44, 134,172.32 and 30,287.76 is: 45,428.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,453.44 : 134,172.32 = 30,287.76 : x
  2. Step 2: Convert to fraction form
    89,453.44/134,172.32 = 30,287.76/x
  3. Step 3: Cross multiply
    89,453.44x = 134,172.32 × 30,287.76
  4. Step 4: Simplify right side
    89,453.44x = 4,063,779,026.80
  5. Step 5: Solve for x
    x = 4,063,779,026.80/89,453.44
  6. Step 6: Final answer
    x = 45,428.99

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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.