Home / 70,749.18-105,990.04-41,811.46

Finding the Fourth Proportional to 70,749.18, 105,990.04 and 41,811.46

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Solution

The fourth proportional to 70,749.18, 105,990.04 and 41,811.46 is: 62,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,749.18 : 105,990.04 = 41,811.46 : x
  2. Step 2: Convert to fraction form
    70,749.18/105,990.04 = 41,811.46/x
  3. Step 3: Cross multiply
    70,749.18x = 105,990.04 × 41,811.46
  4. Step 4: Simplify right side
    70,749.18x = 4,431,598,317.86
  5. Step 5: Solve for x
    x = 4,431,598,317.86/70,749.18
  6. Step 6: Final answer
    x = 62,638.16

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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.