Home / 64,743.12-89,301.96-39,548.88

Finding the Fourth Proportional to 64,743.12, 89,301.96 and 39,548.88

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Solution

The fourth proportional to 64,743.12, 89,301.96 and 39,548.88 is: 54,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,743.12 : 89,301.96 = 39,548.88 : x
  2. Step 2: Convert to fraction form
    64,743.12/89,301.96 = 39,548.88/x
  3. Step 3: Cross multiply
    64,743.12x = 89,301.96 × 39,548.88
  4. Step 4: Simplify right side
    64,743.12x = 3,531,792,499.80
  5. Step 5: Solve for x
    x = 3,531,792,499.80/64,743.12
  6. Step 6: Final answer
    x = 54,550.85

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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.