Home / 64,887.14-89,550.54-39,387.64

Finding the Fourth Proportional to 64,887.14, 89,550.54 and 39,387.64

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Solution

The fourth proportional to 64,887.14, 89,550.54 and 39,387.64 is: 54,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,887.14 : 89,550.54 = 39,387.64 : x
  2. Step 2: Convert to fraction form
    64,887.14/89,550.54 = 39,387.64/x
  3. Step 3: Cross multiply
    64,887.14x = 89,550.54 × 39,387.64
  4. Step 4: Simplify right side
    64,887.14x = 3,527,184,431.33
  5. Step 5: Solve for x
    x = 3,527,184,431.33/64,887.14
  6. Step 6: Final answer
    x = 54,358.76

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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.