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Finding the Fourth Proportional to 65,074.88, 89,807.04 and 36,783.04

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Solution

The fourth proportional to 65,074.88, 89,807.04 and 36,783.04 is: 50,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,074.88 : 89,807.04 = 36,783.04 : x
  2. Step 2: Convert to fraction form
    65,074.88/89,807.04 = 36,783.04/x
  3. Step 3: Cross multiply
    65,074.88x = 89,807.04 × 36,783.04
  4. Step 4: Simplify right side
    65,074.88x = 3,303,375,944.60
  5. Step 5: Solve for x
    x = 3,303,375,944.60/65,074.88
  6. Step 6: Final answer
    x = 50,762.69

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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.