Home / 89,999.45-135,023.73-39,389.27

Finding the Fourth Proportional to 89,999.45, 135,023.73 and 39,389.27

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Solution

The fourth proportional to 89,999.45, 135,023.73 and 39,389.27 is: 59,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,999.45 : 135,023.73 = 39,389.27 : x
  2. Step 2: Convert to fraction form
    89,999.45/135,023.73 = 39,389.27/x
  3. Step 3: Cross multiply
    89,999.45x = 135,023.73 × 39,389.27
  4. Step 4: Simplify right side
    89,999.45x = 5,318,485,482.26
  5. Step 5: Solve for x
    x = 5,318,485,482.26/89,999.45
  6. Step 6: Final answer
    x = 59,094.65

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1.5x scale

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.