Home / 64,977.05-89,669.07-38,120.01

Finding the Fourth Proportional to 64,977.05, 89,669.07 and 38,120.01

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Solution

The fourth proportional to 64,977.05, 89,669.07 and 38,120.01 is: 52,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,977.05 : 89,669.07 = 38,120.01 : x
  2. Step 2: Convert to fraction form
    64,977.05/89,669.07 = 38,120.01/x
  3. Step 3: Cross multiply
    64,977.05x = 89,669.07 × 38,120.01
  4. Step 4: Simplify right side
    64,977.05x = 3,418,185,845.09
  5. Step 5: Solve for x
    x = 3,418,185,845.09/64,977.05
  6. Step 6: Final answer
    x = 52,606.05

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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.