Home / 90,021.57-135,032.28-27,692.07

Finding the Fourth Proportional to 90,021.57, 135,032.28 and 27,692.07

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Solution

The fourth proportional to 90,021.57, 135,032.28 and 27,692.07 is: 41,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,021.57 : 135,032.28 = 27,692.07 : x
  2. Step 2: Convert to fraction form
    90,021.57/135,032.28 = 27,692.07/x
  3. Step 3: Cross multiply
    90,021.57x = 135,032.28 × 27,692.07
  4. Step 4: Simplify right side
    90,021.57x = 3,739,323,350.02
  5. Step 5: Solve for x
    x = 3,739,323,350.02/90,021.57
  6. Step 6: Final answer
    x = 41,538.08

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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.