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Finding the Fourth Proportional to 65,414.87, 90,271.42 and 36,734.79

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Solution

The fourth proportional to 65,414.87, 90,271.42 and 36,734.79 is: 50,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,414.87 : 90,271.42 = 36,734.79 : x
  2. Step 2: Convert to fraction form
    65,414.87/90,271.42 = 36,734.79/x
  3. Step 3: Cross multiply
    65,414.87x = 90,271.42 × 36,734.79
  4. Step 4: Simplify right side
    65,414.87x = 3,316,101,656.70
  5. Step 5: Solve for x
    x = 3,316,101,656.70/65,414.87
  6. Step 6: Final answer
    x = 50,693.39

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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.