Home / 89,192.28-123,168.44-57,416.28

Finding the Fourth Proportional to 89,192.28, 123,168.44 and 57,416.28

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Solution

The fourth proportional to 89,192.28, 123,168.44 and 57,416.28 is: 79,287.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,192.28 : 123,168.44 = 57,416.28 : x
  2. Step 2: Convert to fraction form
    89,192.28/123,168.44 = 57,416.28/x
  3. Step 3: Cross multiply
    89,192.28x = 123,168.44 × 57,416.28
  4. Step 4: Simplify right side
    89,192.28x = 7,071,873,638.20
  5. Step 5: Solve for x
    x = 7,071,873,638.20/89,192.28
  6. Step 6: Final answer
    x = 79,287.96

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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.