Home / 64,886.09-97,320.72-20,517.32

Finding the Fourth Proportional to 64,886.09, 97,320.72 and 20,517.32

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Solution

The fourth proportional to 64,886.09, 97,320.72 and 20,517.32 is: 30,773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886.09 : 97,320.72 = 20,517.32 : x
  2. Step 2: Convert to fraction form
    64,886.09/97,320.72 = 20,517.32/x
  3. Step 3: Cross multiply
    64,886.09x = 97,320.72 × 20,517.32
  4. Step 4: Simplify right side
    64,886.09x = 1,996,760,354.87
  5. Step 5: Solve for x
    x = 1,996,760,354.87/64,886.09
  6. Step 6: Final answer
    x = 30,773.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.