Home / 89,190.48-123,072.84-51,477.20

Finding the Fourth Proportional to 89,190.48, 123,072.84 and 51,477.20

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Solution

The fourth proportional to 89,190.48, 123,072.84 and 51,477.20 is: 71,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,190.48 : 123,072.84 = 51,477.20 : x
  2. Step 2: Convert to fraction form
    89,190.48/123,072.84 = 51,477.20/x
  3. Step 3: Cross multiply
    89,190.48x = 123,072.84 × 51,477.20
  4. Step 4: Simplify right side
    89,190.48x = 6,335,445,199.25
  5. Step 5: Solve for x
    x = 6,335,445,199.25/89,190.48
  6. Step 6: Final answer
    x = 71,032.75

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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.