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Finding the Fourth Proportional to 90,591.62, 135,898.22 and 43,810.88

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Solution

The fourth proportional to 90,591.62, 135,898.22 and 43,810.88 is: 65,721.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,591.62 : 135,898.22 = 43,810.88 : x
  2. Step 2: Convert to fraction form
    90,591.62/135,898.22 = 43,810.88/x
  3. Step 3: Cross multiply
    90,591.62x = 135,898.22 × 43,810.88
  4. Step 4: Simplify right side
    90,591.62x = 5,953,820,038.67
  5. Step 5: Solve for x
    x = 5,953,820,038.67/90,591.62
  6. Step 6: Final answer
    x = 65,721.54

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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.