Home / 89,201.40-123,162.48-57,425.64

Finding the Fourth Proportional to 89,201.40, 123,162.48 and 57,425.64

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Solution

The fourth proportional to 89,201.40, 123,162.48 and 57,425.64 is: 79,288.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,201.40 : 123,162.48 = 57,425.64 : x
  2. Step 2: Convert to fraction form
    89,201.40/123,162.48 = 57,425.64/x
  3. Step 3: Cross multiply
    89,201.40x = 123,162.48 × 57,425.64
  4. Step 4: Simplify right side
    89,201.40x = 7,072,684,237.99
  5. Step 5: Solve for x
    x = 7,072,684,237.99/89,201.40
  6. Step 6: Final answer
    x = 79,288.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.