Home / 64,724.50-89,321.97-39,569.14

Finding the Fourth Proportional to 64,724.50, 89,321.97 and 39,569.14

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Solution

The fourth proportional to 64,724.50, 89,321.97 and 39,569.14 is: 54,606.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,724.50 : 89,321.97 = 39,569.14 : x
  2. Step 2: Convert to fraction form
    64,724.50/89,321.97 = 39,569.14/x
  3. Step 3: Cross multiply
    64,724.50x = 89,321.97 × 39,569.14
  4. Step 4: Simplify right side
    64,724.50x = 3,534,393,536.01
  5. Step 5: Solve for x
    x = 3,534,393,536.01/64,724.50
  6. Step 6: Final answer
    x = 54,606.73

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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.