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Finding the Fourth Proportional to 90,124.63, 135,188.76 and 27,795.13

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Solution

The fourth proportional to 90,124.63, 135,188.76 and 27,795.13 is: 41,693.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,124.63 : 135,188.76 = 27,795.13 : x
  2. Step 2: Convert to fraction form
    90,124.63/135,188.76 = 27,795.13/x
  3. Step 3: Cross multiply
    90,124.63x = 135,188.76 × 27,795.13
  4. Step 4: Simplify right side
    90,124.63x = 3,757,589,158.74
  5. Step 5: Solve for x
    x = 3,757,589,158.74/90,124.63
  6. Step 6: Final answer
    x = 41,693.25

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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.