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Finding the Fourth Proportional to 65,667.84, 90,624.60 and 37,379.40

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Solution

The fourth proportional to 65,667.84, 90,624.60 and 37,379.40 is: 51,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,667.84 : 90,624.60 = 37,379.40 : x
  2. Step 2: Convert to fraction form
    65,667.84/90,624.60 = 37,379.40/x
  3. Step 3: Cross multiply
    65,667.84x = 90,624.60 × 37,379.40
  4. Step 4: Simplify right side
    65,667.84x = 3,387,493,173.24
  5. Step 5: Solve for x
    x = 3,387,493,173.24/65,667.84
  6. Step 6: Final answer
    x = 51,585.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.