Home / 90,664.07-135,996.08-28,334.57

Finding the Fourth Proportional to 90,664.07, 135,996.08 and 28,334.57

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Solution

The fourth proportional to 90,664.07, 135,996.08 and 28,334.57 is: 42,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,664.07 : 135,996.08 = 28,334.57 : x
  2. Step 2: Convert to fraction form
    90,664.07/135,996.08 = 28,334.57/x
  3. Step 3: Cross multiply
    90,664.07x = 135,996.08 × 28,334.57
  4. Step 4: Simplify right side
    90,664.07x = 3,853,390,448.49
  5. Step 5: Solve for x
    x = 3,853,390,448.49/90,664.07
  6. Step 6: Final answer
    x = 42,501.85

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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.