Home / 63,553.30-87,667.11-39,638.46

Finding the Fourth Proportional to 63,553.30, 87,667.11 and 39,638.46

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Solution

The fourth proportional to 63,553.30, 87,667.11 and 39,638.46 is: 54,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,553.30 : 87,667.11 = 39,638.46 : x
  2. Step 2: Convert to fraction form
    63,553.30/87,667.11 = 39,638.46/x
  3. Step 3: Cross multiply
    63,553.30x = 87,667.11 × 39,638.46
  4. Step 4: Simplify right side
    63,553.30x = 3,474,989,233.05
  5. Step 5: Solve for x
    x = 3,474,989,233.05/63,553.30
  6. Step 6: Final answer
    x = 54,678.34

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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.