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Finding the Fourth Proportional to 65,747.57, 90,709.49 and 37,433.21

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Solution

The fourth proportional to 65,747.57, 90,709.49 and 37,433.21 is: 51,645.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,747.57 : 90,709.49 = 37,433.21 : x
  2. Step 2: Convert to fraction form
    65,747.57/90,709.49 = 37,433.21/x
  3. Step 3: Cross multiply
    65,747.57x = 90,709.49 × 37,433.21
  4. Step 4: Simplify right side
    65,747.57x = 3,395,547,201.00
  5. Step 5: Solve for x
    x = 3,395,547,201.00/65,747.57
  6. Step 6: Final answer
    x = 51,645.21

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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.