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Finding the Fourth Proportional to 65,070.37, 89,796.48 and 36,389.71

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Solution

The fourth proportional to 65,070.37, 89,796.48 and 36,389.71 is: 50,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,070.37 : 89,796.48 = 36,389.71 : x
  2. Step 2: Convert to fraction form
    65,070.37/89,796.48 = 36,389.71/x
  3. Step 3: Cross multiply
    65,070.37x = 89,796.48 × 36,389.71
  4. Step 4: Simplify right side
    65,070.37x = 3,267,667,866.22
  5. Step 5: Solve for x
    x = 3,267,667,866.22/65,070.37
  6. Step 6: Final answer
    x = 50,217.45

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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.