Home / 89,431.19-123,388.12-53,608.13

Finding the Fourth Proportional to 89,431.19, 123,388.12 and 53,608.13

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Solution

The fourth proportional to 89,431.19, 123,388.12 and 53,608.13 is: 73,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,431.19 : 123,388.12 = 53,608.13 : x
  2. Step 2: Convert to fraction form
    89,431.19/123,388.12 = 53,608.13/x
  3. Step 3: Cross multiply
    89,431.19x = 123,388.12 × 53,608.13
  4. Step 4: Simplify right side
    89,431.19x = 6,614,605,894.50
  5. Step 5: Solve for x
    x = 6,614,605,894.50/89,431.19
  6. Step 6: Final answer
    x = 73,963.08

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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.