Home / 70,514.35-105,672.07-38,938.62

Finding the Fourth Proportional to 70,514.35, 105,672.07 and 38,938.62

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Solution

The fourth proportional to 70,514.35, 105,672.07 and 38,938.62 is: 58,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,514.35 : 105,672.07 = 38,938.62 : x
  2. Step 2: Convert to fraction form
    70,514.35/105,672.07 = 38,938.62/x
  3. Step 3: Cross multiply
    70,514.35x = 105,672.07 × 38,938.62
  4. Step 4: Simplify right side
    70,514.35x = 4,114,724,745.18
  5. Step 5: Solve for x
    x = 4,114,724,745.18/70,514.35
  6. Step 6: Final answer
    x = 58,353.01

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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.