Home / 64,842.12-89,478.98-36,164.78

Finding the Fourth Proportional to 64,842.12, 89,478.98 and 36,164.78

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Solution

The fourth proportional to 64,842.12, 89,478.98 and 36,164.78 is: 49,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,842.12 : 89,478.98 = 36,164.78 : x
  2. Step 2: Convert to fraction form
    64,842.12/89,478.98 = 36,164.78/x
  3. Step 3: Cross multiply
    64,842.12x = 89,478.98 × 36,164.78
  4. Step 4: Simplify right side
    64,842.12x = 3,235,987,469.27
  5. Step 5: Solve for x
    x = 3,235,987,469.27/64,842.12
  6. Step 6: Final answer
    x = 49,905.64

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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.