Home / 64,139.28-88,512-35,845.08

Finding the Fourth Proportional to 64,139.28, 88,512 and 35,845.08

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Solution

The fourth proportional to 64,139.28, 88,512 and 35,845.08 is: 49,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,139.28 : 88,512 = 35,845.08 : x
  2. Step 2: Convert to fraction form
    64,139.28/88,512 = 35,845.08/x
  3. Step 3: Cross multiply
    64,139.28x = 88,512 × 35,845.08
  4. Step 4: Simplify right side
    64,139.28x = 3,172,719,720.96
  5. Step 5: Solve for x
    x = 3,172,719,720.96/64,139.28
  6. Step 6: Final answer
    x = 49,466.10

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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.