Home / 64,620.14-89,177.86-39,131.26

Finding the Fourth Proportional to 64,620.14, 89,177.86 and 39,131.26

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Solution

The fourth proportional to 64,620.14, 89,177.86 and 39,131.26 is: 54,002.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,620.14 : 89,177.86 = 39,131.26 : x
  2. Step 2: Convert to fraction form
    64,620.14/89,177.86 = 39,131.26/x
  3. Step 3: Cross multiply
    64,620.14x = 89,177.86 × 39,131.26
  4. Step 4: Simplify right side
    64,620.14x = 3,489,642,025.90
  5. Step 5: Solve for x
    x = 3,489,642,025.90/64,620.14
  6. Step 6: Final answer
    x = 54,002.39

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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.