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Finding the Fourth Proportional to 90,165.88, 135,261.13 and 37,563.06

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Solution

The fourth proportional to 90,165.88, 135,261.13 and 37,563.06 is: 56,349.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,165.88 : 135,261.13 = 37,563.06 : x
  2. Step 2: Convert to fraction form
    90,165.88/135,261.13 = 37,563.06/x
  3. Step 3: Cross multiply
    90,165.88x = 135,261.13 × 37,563.06
  4. Step 4: Simplify right side
    90,165.88x = 5,080,821,941.86
  5. Step 5: Solve for x
    x = 5,080,821,941.86/90,165.88
  6. Step 6: Final answer
    x = 56,349.72

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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.