Home / 47,133.85-70,660.91-20,459.79

Finding the Fourth Proportional to 47,133.85, 70,660.91 and 20,459.79

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Solution

The fourth proportional to 47,133.85, 70,660.91 and 20,459.79 is: 30,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,133.85 : 70,660.91 = 20,459.79 : x
  2. Step 2: Convert to fraction form
    47,133.85/70,660.91 = 20,459.79/x
  3. Step 3: Cross multiply
    47,133.85x = 70,660.91 × 20,459.79
  4. Step 4: Simplify right side
    47,133.85x = 1,445,707,315.87
  5. Step 5: Solve for x
    x = 1,445,707,315.87/47,133.85
  6. Step 6: Final answer
    x = 30,672.38

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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.